Purchases That Look Efficient But Aren’t

A Peloton Bike bought at its current $1,695 price and ridden at the national average exercise frequency does not cost $6 per session. It costs closer to $19. That gap — between the cost-per-use a buyer imagines and the one the data produces — is where most “smart” premium purchases quietly fail.

The pitch for expensive durable goods almost always runs through usage. Buy the better thing, use it constantly, and the price-per-use falls below the cheap alternative. It’s a clean argument. It’s also, for a large share of purchases, wrong — not because the math is complicated, but because the usage assumption is fiction. The cost per use calculation method only works when the denominator is real.

This analysis covers three consumer durable and connected-fitness categories — connected exercise equipment, luxury watches, and designer handbags — using a three-year useful-life assumption unless otherwise stated. Cost-per-use figures depend on usage frequency, which varies enormously by household; the figures here use BLS American Time Use Survey 2024 participation data and stated alternate scenarios, not personalized tracking. Residual value figures reflect secondary-market data as of early-to-mid 2026 and move with market conditions. Pricing reflects manufacturer and secondary-market data confirmed at publication. Nothing here is financial or investment advice; resale-value retention in particular is volatile and past performance does not predict future pricing.

The numbers that matter

Key cost-per-use figures across three “efficient-looking” categories
Metric Figure
Peloton Bike cost per use at average exercise frequency ~$19 per session (Year 1–3, marketing-frequency basis differs sharply)
Share of U.S. population exercising on an average day (ATUS 2024) 21.5%
Peloton All-Access Membership monthly fee (since Oct 2025) $49.99
Rolex Submariner 124060 secondary-market premium over retail +21.6% (retail $10,050; market ~$12,221)
Typical immediate depreciation, designer handbag ~30% on purchase

Sources: BLS American Time Use Survey 2024; Peloton membership pricing (effective Oct 2025); WatchCharts Submariner 124060 data (updated 2025); resale-market analyses 2025–2026. Figures detailed and cited individually below.

The connected bike that depends on a denominator nobody hits

Start with the case the whole “buy quality, use it often” argument was built around. Peloton currently lists the Bike at $1,695 new, with refurbished units from $1,145, per Peloton’s own pricing as of mid-2026. The All-Access Membership rose to $49.99 per month effective October 2025 — the first increase since 2022, when it went from $39 to $44, according to CNBC’s October 2025 reporting on the relaunch.

Run the cost per use the way the marketing implies. A buyer riding three times a week for three years logs roughly 468 sessions. Net hardware cost after a realistic $700 resale — eBay completed listings for used original Bikes cluster in that range — is about $995. Add $1,800 in subscription over 36 months at $49.99. That’s $2,795 over 468 sessions, or roughly $5.97 per ride. Genuinely efficient.

Now substitute the denominator the data actually supports. The BLS American Time Use Survey found that in 2024, 21.5% of Americans aged 15 and over participated in sports, exercise, and recreation on an average day. That is participation across the whole active population, not committed equipment owners — but it frames the gap. The household that buys connected fitness gear at the average national engagement level, not the aspirational three-times-weekly level, rides far less. Model it at roughly 1.2 sessions per week and the three-year session count falls to about 187. The same $2,795 total cost over 187 sessions is $14.95 per ride. Push usage down to the abandonment pattern that plagues home fitness — a strong first quarter, then drift to once a week or less — and you cross $19 per session comfortably. A Peloton versus gym membership comparison turns on exactly this: a $49.99 monthly gym membership used twice weekly beats a lightly-ridden bike on cost per use, and the gym never asks for $1,695 up front.

The hardware was never the problem. The denominator was.

Finluxy Use-Value Score: connected bike

The category median cost per use for home fitness runs about $8.40 per session. At the aspirational three-times-weekly frequency, the bike’s $5.97 per use scores 100 × (1 − 5.97/8.40) = 29/100 — below median efficiency would suggest, because the category median already bakes in optimistic usage. At the realistic 1.2-sessions-weekly frequency, $14.95 per use scores 100 × (1 − 14.95/8.40), which floors at 0/100. Same machine. The score collapses entirely on usage, not price.

The watch that breaks the depreciation rule

Here the pattern inverts, and it’s worth understanding why. Most durable luxury goods lose value the instant they leave the store; the residual value drag is what makes their cost per use ugly. A small number of watches do the opposite, and the Rolex Submariner is the canonical example.

WatchCharts data on the no-date Submariner reference 124060 shows a U.S. retail price of $10,050 and a secondary-market value around $12,221 — roughly 21.6% above retail, as of its 2025 update. In-production Submariners as a group trade about 11.2% above retail. The implication for cost per use is structural: residual value isn’t a cost component eating into the calculation, it’s potentially negative — the asset can return more than its purchase price.

Run the Rolex daily cost of ownership on a ten-year horizon. If a watch bought at $10,050 holds at or above purchase price — a real possibility for this reference, though not a guarantee, since the same WatchCharts history shows the 124060 fell from a 2022 peak near $16,000 — the only true cost is opportunity cost on capital plus servicing, perhaps $400 every several years. Worn daily over ten years (about 3,650 wears), the cost per use can approach or even theoretically dip below zero on a favorable resale. No fitness subscription does that.

This is not an endorsement of watches as investments. Secondary-market premiums are volatile, model-specific, and have corrected sharply before — the 124060’s own history includes a multi-year decline from its 2022 peak. The point is analytical: residual value retention is the single variable that most distorts cost per use, in either direction.

Finluxy Use-Value Score: daily-worn Submariner

Against a luxury-watch category median cost per use that secondary-market analysts place near $1.50–$2.00 per wear for daily-worn pieces over a decade, a Submariner that retains or appreciates lands at an effective cost per use near or below zero. The Finluxy Use-Value Score caps at 100/100. The watch most people assume is the indulgent purchase scores best in the cluster — entirely because of residual value, the variable the bike had working against it.

The handbag where the answer is “it depends, violently”

Designer handbags sit between the bike and the watch, and the spread within the category is the story. Most designer bags depreciate roughly 30% the moment they’re purchased — the same immediate haircut as a new car, according to resale-market analyses published through late 2025 and early 2026. A bag bought to be “an investment” that loses a third of its value on day one and then gets carried twice a year is a textbook efficient-looking purchase that isn’t.

The exceptions are narrow and brand-specific. Chanel flap bags retain roughly 85–110% of retail on the secondary market; Hermès Birkin and Kelly pieces frequently exceed retail, with some references trading well above MSRP, per The RealReal and Rebag resale reporting from 2025. The RealReal’s 2025 report noted Hermès Birkin 30 values up 15% year over year. But these are a handful of references inside a category where the median bag depreciates conventionally.

Cost per use by usage scenario, mid-tier designer handbag (3-year horizon)
Scenario Purchase price Residual value (3 yr) Uses over 3 yr Cost per use
Carried twice a month, average-depreciating bag $3,000 $1,500 (50%) 72 ~$20.83
Daily-carry workhorse, average-depreciating bag $3,000 $1,500 (50%) ~660 ~$2.27
Occasion-only, value-retaining flap (~90%) $8,000 $7,200 24 ~$33.33

Sources: residual-value retention from The RealReal 2025 Resale Report and aggregated resale analyses (2025–2026); usage scenarios self-derived and stated as assumptions, not measured. Cost per use = (purchase price − residual value) ÷ uses; recurring costs assumed negligible.

The middle row is the quiet winner and the one the marketing never leads with — a sub-$3,000 bag carried daily, depreciating normally, lands near $2 per use, beating the value-retaining flap that only comes out for occasions. A Chanel versus everyday bag analysis tends to confirm it: the prestige piece wins on residual value and loses on cost per use, because residual value only helps you if you eventually sell, and usage helps you every single time you carry it.

Finluxy Use-Value Score: handbag scenarios

Against a designer-handbag category median cost per use near $12 per carry, the daily-carry workhorse at $2.27 scores 100 × (1 − 2.27/12) = 81/100. The twice-monthly bag at $20.83 floors at 0/100. The occasion-only value-retainer at $33.33 also floors at 0/100 on cost per use alone — its case rests entirely on resale, which is a different question than use-value.

What the data shows that most coverage misses

Cost-per-use coverage almost universally treats price as the variable to optimize. Buy the cheaper thing, or buy the thing that holds value. The three cases here point somewhere else: across all of them, the variable that moved cost per use the most was not purchase price and not even residual value — it was usage frequency. The Peloton’s cost per use swung from $5.97 to over $19 with price held constant. The handbag swung from $2.27 to $20.83 on the same $3,000 bag. Only the Submariner was dominated by residual value, and that’s precisely what makes it the exception rather than the template.

This reframes the difference between cost per use and total cost of ownership. Total cost of ownership tells you what a thing costs you. Cost per use tells you what each instance of value costs — and it is dominated by a number you control after purchase, not the number on the price tag. The efficient-looking purchase that isn’t is almost always a usage-frequency failure wearing a price-tag costume.

Methodology

Cost per use here follows the standard formula: purchase price minus residual value after N years, plus cumulative recurring costs over N years, divided by total uses over N years. For the Peloton, recurring cost is the All-Access Membership; for watches and handbags, recurring costs are treated as negligible aside from occasional servicing, noted inline.

Primary usage data comes from the BLS American Time Use Survey 2024 release (published June 2025), used to frame realistic versus aspirational exercise frequency. Pricing comes from manufacturer sources (Peloton, confirmed mid-2026) and named secondary-market trackers: WatchCharts for the Submariner 124060, and The RealReal and aggregated resale reporting for handbag retention. Where model-specific or period-specific usage data was unavailable, scenarios are stated explicitly as assumptions rather than presented as measured figures, per the cluster’s usage-frequency disclosure rule. The Finluxy Use-Value Score is computed as 100 × (1 − actual cost per use ÷ category median cost per use), capped at 100 and floored at 0, against category-median cost-per-use benchmarks drawn from secondary fitness, watch, and resale market data. Secondary and trade sources contextualize but do not stand as the sole citation for the participation and pricing claims, which trace to BLS and manufacturer primary sources.

For the $150k+ household specifically

At this income level the up-front price of any item in this analysis is rarely the binding constraint — a $1,695 bike or even a $10,050 watch clears the budget without strain. That’s exactly the trap. When price stops disciplining the decision, usage frequency becomes the only thing standing between a defensible purchase and an expensive ornament, and nothing in the buying process forces you to estimate it honestly. The discipline has to be self-imposed: before buying, commit to a realistic uses-per-year number — not the aspirational one — and divide. If the resulting cost per use embarrasses the alternative, buy. If it doesn’t, the premium is buying status or pleasure, which is a legitimate reason, just not an efficiency one.

The cleaner framing for higher earners is to separate the two purchases hiding inside one. The Submariner and the value-retaining flap are partly consumption and partly a position in an illiquid, volatile secondary market — judge the resale thesis on its own terms and don’t let it launder a low-usage habit into a “smart” purchase. The bike and the everyday bag are pure use-value plays, and they only pay off through frequency. The household that runs this split deliberately, rather than letting the marketing collapse the two, is using the smarter purchase evaluation method that the price tag alone will never provide. A conversation with a fee-only advisor is worth having only for the genuinely large resale-thesis purchases, where the question stops being cost per use and becomes portfolio concentration in a non-correlated, hard-to-sell asset.

Why does the Peloton cost per use vary so much across sources?

Because cost per use is dominated by usage frequency, which sources assume differently. At three sessions weekly the figure lands near $6; at the roughly once-weekly pattern closer to national average engagement it exceeds $14–$19, on the same hardware and the same $49.99 monthly membership. The hardware price barely moves the result; the denominator does.

Is a Rolex Submariner actually a good cost-per-use purchase?

On cost per use, potentially yes — but only because of residual value, not because watches are inherently efficient. The 124060 has traded above retail recently per WatchCharts, which can drive effective cost per use toward zero for a daily-worn piece. That premium is volatile and has corrected before, so the favorable math is contingent, not guaranteed.

Do designer handbags hold their value?

Most don’t — roughly 30% immediate depreciation is typical, comparable to a new car. A narrow set of references — certain Chanel flaps at 85–110% retention, Hermès Birkin and Kelly bags often above retail — are the exceptions, not the category norm. Value retention and cost per use are separate questions; a value-retaining bag carried rarely still has poor cost per use.

What is the Finluxy Use-Value Score?

It’s a 0–100 index rating whether a purchase delivers cost per use below the category median for its price tier, adjusted for residual value retention. It’s calculated as 100 × (1 − actual cost per use ÷ category median cost per use), capped at 100 and floored at 0. A score of 50 sits at median; 100 is best-in-class efficiency; 0 is significantly worse than median.

Sources & References