The Purchase Is the Cheap Part

Table of Contents

Imagine someone gives you a Lamborghini. Free. You now owe five times the insurance, premium fuel, tyres priced like a holiday, servicing at $1,500–2,000 a year, and months of waiting whenever a part fails. The purchase price was the cheap part, and it was zero.

Every luxury has a tail
#

That’s the general case. The sticker price is a one-off; what you’re really signing up for is a stream of obligations that shows up monthly, forever, and never appeared in the decision.

There’s a 250-year-old description of this. Denis Diderot wrote an essay in 1769 about being given an elegant scarlet dressing gown, and finding that it made everything around it look shabby. So he replaced the chair. Then the desk. Then the tapestries. He ended up in debt and wrote that he had been “absolute master of my old dressing gown” but had “become a slave to the new one.”

The line that survives best: the poor man may take his ease, but the rich man is always under a strain.

The Diderot effect is now the standard name for it, and it’s the mechanism behind most lifestyle inflation. One purchase raises the standard of everything adjacent, and the adjacent things get replaced to match.

The real cost is optionality
#

Here’s what makes this a financial argument rather than a moral one.

Recurring costs raise the floor of income you must earn every month. Raise that floor high enough and you can’t take the lower-paying job you’d prefer, can’t go three months without income to start something, can’t absorb a redundancy without panic.

You haven’t bought a car. You’ve sold flexibility, on an instalment plan, and the price isn’t visible until you need the thing you sold.

The arithmetic of not bothering
#

Skipping the upgrades — the designer stuff, the newest phone, the better car every three years — frees an amount that’s easy to underrate.

$500 a month is $6,000 a year. Invested in a broad index fund, that’s over $500,000 in 25 years. Same money, differently directed. It also funds the emergency fund, the retirement account, and the education or skill that raises your income further.

Meanwhile around 65% of Americans live paycheck to paycheck, a figure that includes plenty of people earning well. That’s what the recurring tail does at scale.

Two things a low profile buys that money can’t
#

Better company. Visible wealth attracts people interested in the wealth. The version of this I find most persuasive is small: an evening out where somebody wants the table service and the five-star dinner and expects everyone to split $500 for it. Nobody in that group is choosing you. Living modestly filters those people out automatically, without you having to be the one who says no every time.

Not being a target. Posting the watch, the car, and the portfolio balance tells a specific audience exactly what you have and roughly where you are.

The treadmill, and the study that’s less tidy than it’s quoted
#

The other argument is that the purchases don’t work anyway.

The hedonic treadmill describes how we return to a stable happiness baseline after gains and losses alike. The famous evidence is Brickman’s 1978 study finding lottery winners were no happier than controls some months after winning.

I’d flag that this study is quoted more confidently than it deserves — a small sample, and later research complicates it, with some evidence that large windfalls do produce modest lasting improvements in life satisfaction. The strong claim, that money doesn’t affect happiness at all, isn’t supported.

The weaker claim survives fine and is the one that matters here: adaptation to a purchase is fast and nearly total. A new car is thrilling for a few months and then it’s just the car you drive. You bought a few months of elevated feeling and a permanent payment.

Retiring on less, which is the biggest one
#

The under-discussed consequence: your spending sets the size of the fortune you need.

Under the 4% rule, a $50,000-a-year lifestyle needs about $1.25M. A $100,000-a-year lifestyle needs $2.5M.

Doubling your spending doesn’t just consume more each year — it doubles the finish line and pushes it back by many years of work. Restraint is therefore the only lever that works on both sides of the equation at once, raising what you save while lowering what you need. Nothing else does that.

So what to actually do
#

Before any significant purchase, write down the annual recurring cost — insurance, maintenance, storage, the things it makes look shabby.
Calculate your own number: annual spending × 25. That’s what you’re working toward, and it moves when you do.
Redirect one upgrade you were planning into an automatic monthly investment.
Stop posting what you own. It attracts the wrong people and the wrong attention.
Wait 30 days on anything status-driven. Adaptation is fast; anticipation is most of the pleasure anyway.

Sources & further reading
#

Regrets on Parting with My Old Dressing Gown — Denis Diderot (1769) — the original essay behind the Diderot effect.
Lottery winners and accident victims: is happiness relative? — Brickman, Coates & Janoff-Bulman (1978) — the study behind the hedonic treadmill claim, worth reading for its actual limits.
Money and happiness: extended evidence against nonlinear relationships — Killingsworth, Kahneman & Mellers — the more recent work complicating the simple “money doesn’t buy happiness” reading.

Simple Things Outlive Clever Ones

12 January 2026·571 words·3 mins· loading · loading

Durability & Maintenance Spending Footwear

Simple Things Outlive Clever Ones # The things that last decades have almost nothing in common except what they lack — no proprietary parts, no sealed housing, no features designed to expire. Durability turns out to be mostly an absence. Five that hold up # A cheap Casio. The A158 or the F91W. Not a warranty story — just robustness, with decades of people reporting the same watches still going. The battery alone runs about ten years. Around $20–35 used, and the adjustable band means you never need a shop to size it. A G-Shock if you want the indestructible version. A Rotring 600 pencil. German, launched 1989, full metal body with a knurled grip. Takes standard 0.5 or 0.7 leads, so no proprietary anything. One weakness: drop it on the tip and it bends — but the tip is a replaceable part. The black one wears to brass at the edges, which looks better with age rather than worse. A ThinkPad T480. Widely considered the last really good one: removable battery plus an internal one so you can hot-swap, two drive slots, two RAM slots, replaceable keyboard, screen, trackpad. Standard Phillips screws throughout. A physical webcam shutter, which newer premium laptops still don’t have. Upgraded and running Linux, ten to fifteen years is a realistic expectation. An Opinel No. 8. French, made since the late 1800s, about $20. Beechwood handle, carbon steel blade, a metal collar that twists to lock. No springs, no mechanism. The warranty is nearly meaningless and it doesn’t matter, because there’s essentially nothing in it that can fail. People are still using ones from the 1950s. Goodyear-welted boots. Red Wing Iron Rangers or anything built the same way. The point isn’t the brand, it’s the construction: the sole is stitched rather than glued, so it can be replaced over and over. Buy the method, not the label — Thursday and LL Bean’s Katahdins qualify at lower prices. The pattern # Read those back and the common feature is refusal.

Every luxury has a tail#

The real cost is optionality#

The arithmetic of not bothering#

Two things a low profile buys that money can’t#

The treadmill, and the study that’s less tidy than it’s quoted#

Retiring on less, which is the biggest one#

So what to actually do#

Sources & further reading#

Related