Every Resale Price Has a Floor, and Cheap Brands Hit It First
Depreciation curves are usually drawn heading for zero, and real resale prices do not. A genuine designer piece keeps a residual value more or less indefinitely, because at some point the buyer is paying for the object rather than for its newness.
The resale estimator builds that in as a floor: the age factor never falls below 30%, whatever the tier and however many years pass.
When each tier reaches its floor
| Tier | Annual decay | Floor reached at | Resale then (on $2,000, good) |
|---|---|---|---|
| Entry | 18% | 7 years | $122 |
| Premium | 14% | 8 years | $184 |
| Luxury | 10% | 12 years | $245 |
| Ultra | 7% | 17 years | $306 |
An entry-brand item is finished depreciating by year 7. An ultra-tier piece takes 17 — more than twice as long, which is another way of saying that the expensive thing spends far longer being worth selling.
The curve, year by year
| Years owned | Entry | Premium | Luxury | Ultra |
|---|---|---|---|---|
| 0 | 100% | 100% | 100% | 100% |
| 2 | 67.2% | 74% | 81% | 86.5% |
| 5 | 37.1% | 47% | 59% | 69.6% |
| 10 | 30% | 30% | 34.9% | 48.4% |
| 15 | 30% | 30% | 30% | 33.7% |
| 20 | 30% | 30% | 30% | 30% |
| 30 | 30% | 30% | 30% | 30% |
Read across any row and the tier spread is obvious. Read down a column and you can see the curve flatten and then stop.
What the floor means in practice
Before the floor, waiting costs money. Every year of hesitation on a luxury piece removes 10% of what is left. On a $661 item that is real money per year of indecision.
After the floor, waiting costs nothing. An entry-brand piece at year 7 will be worth the same at year 17. There is no urgency, and the only thing that changes is the condition — which is now the entire variable.
That flips the usual advice. For a recent expensive purchase, sell early. For an old cheap one, there is no hurry, so sell when it suits you.
Why a floor exists at all
Because a designer item has a residual worth that is not about fashion: the materials, the construction, the fact that it can be repaired, and a durable secondhand market for the brand. A twenty-year-old luxury bag in good condition still sells, and sells to somebody who wants a twenty-year-old bag.
The model expresses that as a hard 30% floor. Reality is softer and less uniform — some pieces fall further, and a small number of famous references go the other way entirely.
The case the model refuses to predict
Appreciation. A handful of items — particular watch references, discontinued bags, certain collaborations — are worth more than retail years later, and neither calculator on this site will ever tell you that, by design.
Predicting which piece appreciates is speculation, and a planning tool that pretended to do it would be worse than one that declines. If you own something you believe is in that category, the figures here are a floor rather than an estimate — and the right move is a specialist valuation, not a calculator.
How the floor interacts with commission
An entry piece at its floor is worth $122 on a $2,000 original. Run that through the payout calculator and you receive $67.
At that level the commission is 45%, and the honest question becomes whether it is worth the photographs and the packaging at all — frequently it is not.
The planning version
Find your item's tier, look up its floor year, and check where it sits. Before the floor, selling sooner is worth real money. At or past it, the clock has stopped and the only thing still depreciating is your patience.
Reading your own item off the curve
Find the tier column and the row for how long you have owned it. The number is the share of retail the age alone has left; multiply by the tier base and the condition multiplier to get the resale share, or simply put it into the estimator.
What the curve is for is the next row down. The difference between where you are and one row further is the cost of not deciding, and on a recent luxury purchase that number is large enough to end most deliberations.
Why declining balance rather than a straight line
Because value is lost proportionally, not in fixed amounts. A $2,000 piece and a $200 piece of the same tier do not both lose the same dollars a year; they lose the same percentage.
That produces a curve that is steep at first and flattens indefinitely — which matches how secondhand markets actually behave, and is why the floor is a refinement of the model rather than a contradiction of it. Without a floor the curve would approach zero and never arrive, which is mathematically tidy and factually wrong.
The strategy each half implies
Before the floor: decide quickly. Every month of deliberation on a recent purchase has a price, and the price is highest in the first two years.
After the floor: decide well. Wait for the right season, photograph it properly, list it at a threshold rather than under one. Time is free now, so spend it on the things that raise the price.
The shape worth remembering
Steep, then gentle, then flat. Sell in the steep part if you are going to sell at all; relax once you reach the flat part, because nothing further is being lost except the condition — and that remains entirely under your control.
The question the floor answers
"Is it too late to sell this?" — almost never. The floor is the reason: an old piece in decent condition has a residual value that no further waiting removes.
What waiting does remove is condition, so the honest answer is that it is never too late to sell and always too early to stop looking after it.
Checking where your item sits
Put its tier and its age into the estimator, then add a year and run it again. If the two answers differ, you are still on the slope and the difference is the price of waiting. If they match, you have reached the floor and time has stopped costing you anything.