Why do collectors say sealed always goes up?
Over the stretch our data covers, the sealed crowd was mostly right. Sealed product beat singles by a typical 18 percentage points a year after costs, across the quarters both could be measured.[1]
The belief has a simple logic. A booster box or Elite Trainer Box stops being printed, people open the ones that exist, and what's left gets scarcer. A single card has no such floor. A reprint, a cooling set or a shift in which Pokémon are popular can pull its price down.
There's also how it feels. Sealed product sits on a shelf and looks like a store of value. Buying singles feels more like picking stocks, where you have to be right about one card.
So the saying goes: sealed always goes up, singles are a gamble. The data backs the direction of that over a short window. It doesn't back the word "always," and the sections below show why.
What does the price data show?
Sealed product bought at market price and held a year returned a typical +23% after costs. Singles bought in the same quarters returned a typical +5%.
The numbers
| Group | Value |
|---|---|
| Sealed (17,002 buys) | +23% |
| Singles (38,939 buys) | +5% |
The gap held up when we tested how solid it is. Quarter by quarter, the typical gap was 18 percentage points. Resampling whole quarters puts the likely range between 11 percentage points and 25 percentage points, so even the cautious end has sealed ahead.
The sample is large: 17,002 sealed product-months and 38,939 single card-months. We compared English sealed product (booster boxes, Elite Trainer Boxes, bundles and the like) with single cards above the same price floor, each bought at the end of a month and held a year.
These are returns after fees, tax and shipping. Each one counts what buying and selling online costs: a premium over market price and shipping to buy, the marketplace's fee, a slightly lower price and shipping to sell, a little for storage, and tax on any profit.[2][3][4] Sales tax isn't included. If you want to see how much a card has to rise just to cover those costs, our break-even breakdown walks through it.
One choice in the method matters a lot. Sealed prices in our data start in 2024, so we only compared quarters both cover. Lining sealed up against singles from 2023 would have flattered sealed, so we left those out.
Does sealed really always go up?
No, and the data can't show that it does. Our figures cover only 7 quarters, all in one market cycle.
That's a short window. A good run for sealed can come from one period of strong demand, lots of pack opening and a wave of new collectors. One cycle can't tell us whether the same gap shows up when prices soften.
These are also typical figures across many products, not a promise about any one box. A reprint of a product changes its price, and some products get reprinted while others don't. The typical result hides a spread, with individual products landing above it and below it.
On singles, the data says less than the saying does. Singles returned a typical +5% after costs, a modest gain. We only have that typical figure, not how widely singles results spread or how many lost money, so this study can't say whether singles were a gamble.
Would buying sealed at retail change the answer?
Yes, in sealed's favor. Our returns assume you paid market price, what product trades for online once it's out of stores. Buy at retail and you pay less up front, so the same sale price means a bigger gain.
The catch is getting it. Most collectors can't buy at retail. So treat retail as a best case, and the market-price figures as the result for buying the way our method does.
If you're also weighing when to buy singles after a set comes out, our look at buying at release or waiting takes on that question.
What does this mean for your collection?
Over a short stretch, holding sealed did clearly better than holding singles. That's useful history. It isn't a forecast for the next cycle.
A few things shape how much of that gap you'd actually see:
- What you paid. The figures assume market price. Paying above it eats into the gap, and getting retail adds to it.
- How long you hold. These are one-year holds inside one cycle, not long-term results.
- Reprints. A reprint of a product changes its price, and averages across products can't tell you which boxes get one.
- Opening. This compares keeping sealed with buying singles. It doesn't measure what you get from opening packs, so it can't settle open-or-keep on its own.
If you want to follow the cards you own or are eyeing, Pokelit prices English and Japanese Pokémon cards every night from TCGplayer prices, and you can keep a binder that tracks its value and watch cards. See what it does.
How we measured
We compared English sealed product (booster boxes, Elite Trainer Boxes, bundles and the like) worth $20 or more with single cards worth $20 or more, each bought at the end of a month and held a year. Only the quarters both cover are compared, because sealed prices in our data start in 2024 and comparing them with singles from 2023 would flatter sealed. The range is from resampling whole quarters. Each return counts what buying and selling online costs: about 5% over the market price and $1 shipping to buy, the marketplace’s fee, a little under market and $2 shipping to sell, $1 a year to store the card, and tax on any profit (28% on a card held a year or more). Sales tax isn’t included.
Data as of . Not financial advice.
Sources
- TCGplayer, TCGplayer Market Price. The price behind our figures, recorded every night by Pokelit. Accessed .
- TCGplayer, TCGplayer Fees. Accessed .
- eBay, Store selling fees. Accessed .
- Internal Revenue Service, Topic no. 409, Capital gains and losses. Accessed .
Questions
Is sealed Pokémon a good investment?
Over the quarters we measured, sealed product did better than singles: a typical +23% a year after costs, against +5% for singles bought in the same quarters. That covers only 7 quarters, all in one market cycle, so it's a group figure from past prices and not a promise about any product or the future. It also assumes you paid market price, not retail.
Do Pokémon booster boxes always go up in value?
No, the data can't support "always." Sealed product as a group did well over the 7 quarters we could measure, but those quarters fall in one market cycle, so the data can't show how sealed does in other cycles. The figures are typical results across many products. A reprint of a product changes its price, and individual boxes land above and below the typical figure.
Should I open or keep sealed Pokémon?
Our data can't answer that by itself, because it compares holding sealed product with holding single cards, not opening packs. Over the quarters measured, kept sealed product beat singles by a typical 18 percentage points a year after costs. What you'd pull from opening depends on the packs and your luck, which this study doesn't measure. Many collectors open for fun and keep some sealed, and both are fine choices.
Is buying sealed at retail better than market price?
Yes, buying at retail would have done better than the market-price buys we measured, because you pay less for the same product. The catch is that most collectors can't buy at retail. Our figures assume market price, so read retail results as a best case that most collectors won't reach, not as the typical outcome.
How did you compare sealed and singles?
We compared English sealed product, such as booster boxes, Elite Trainer Boxes and bundles, with single cards above the same price floor, each bought at the end of a month and held a year. That came to 17,002 sealed product-months and 38,939 single card-months. Returns count fees, shipping, storage and tax on profit, and we only compared the 7 quarters both cover.
