Is LEGO a Good Investment?
The Research Says Yes - With Important Caveats
A 2021 study published in Research in International Business and Finance found that LEGO sets returned approximately 11% annually between 1987 and 2015, outperforming stocks, bonds, gold, and other alternative investments over the same period. For the sets that drove those returns, the case is real. But the headline figure requires significant context before you start filling a warehouse with sealed LEGO boxes.
Browse current secondary market prices across hundreds of LEGO sets in the CollectionPlnr LEGO price guide.
Why LEGO Appreciates: The Basic Mechanism
LEGO appreciation follows a simple supply-and-demand pattern. While a set is actively sold at retail, secondary market prices stay at or below retail because buyers can purchase new from official channels. When LEGO retires a set permanently, supply becomes fixed. Demand from adult collectors (AFOLs), gift-buyers who missed the retail window, and fans of specific themes continues or grows. Prices rise.
The average retired LEGO set appreciates roughly 35% or more in the first 12 months after retirement, based on analysis of sets retiring each year. Over longer periods, sets in premium themes and in sealed condition have shown returns that can comfortably reach 100-400%+ above original retail price. Some Star Wars Ultimate Collector Series sets and retired Modular Buildings have sold for 3-5x retail after several years off the market.
Which Sets Have Performed Best
Returns vary enormously by theme and specific set. The consistently strongest performers:
| Theme / Category | Typical Appreciation (Sealed, Long-Term) | Why It Works |
|---|---|---|
| Star Wars UCS (Ultimate Collector Series) | 150-400%+ above retail after 5-10 years | Adult collector-focused; iconic subjects; dedicated community; not re-released frequently |
| Modular Buildings | 100-300%+ for retired sets | Annual series with devoted collector base; each release is collectible in its own right |
| Icons (Creator Expert) flagship sets | 80-250%+ for large sets | Broad cultural appeal; adult display pieces; high original retail anchors absolute return |
| Limited / Event Exclusives | High; depends on set | Very low production quantities; no repeat availability |
| Lord of the Rings (license lapsed) | Very high; lapsed license prevented rereleases for years | Popular IP; supply locked when license not renewed |
| City / Friends / Seasonal | Low; often at or below retail years later | Very high print runs; large ongoing supply; few collector fans |
The lesson from these patterns: LEGO investment performance is heavily skewed toward sets that adult collectors desire for display or nostalgia, produced in limited quantities, in themes with enduring cultural relevance. Mass-market sets aimed at children, produced in very large quantities, rarely appreciate meaningfully.
The Real Costs That Reduce Returns
The 11% average annual return figure does not account for the real-world costs of LEGO investing, which are substantial:
Storage
Sealed LEGO boxes are bulky. A meaningful collection requires significant physical space - space that has a real cost, whether you are paying for storage units or forgoing other uses of your home. Sets must be stored in climate-controlled, dry conditions to prevent box warping and damage. A crushed corner or water-damaged box can reduce a sealed set's value by 15-30%.
Transaction Costs
Selling LEGO on eBay or BrickLink involves seller fees, packaging costs, and postage. Platform fees alone can run 10-15% of the sale price. For large or heavy sets, shipping can be expensive and adds packaging complexity. When selling, factor total transaction costs into your expected net return - the 11% annual figure does not include these.
Capital Lock-Up
LEGO is a relatively illiquid alternative asset. Common sets on BrickLink sell within days to weeks. Rare or very high-value sets can take months to find the right buyer at the right price. Your capital is tied up during this period earning nothing, and the market may move while you wait for a sale to complete.
Re-Release Risk
LEGO occasionally re-releases popular retired sets or announces spiritual successors. When the highly sought Haunted House modular was re-released in a new version, owners of the original saw the secondary market soften as some buyers chose the new version instead. LEGO re-releasing or updating a set you hold sealed can suppress your investment's value.
LEGO vs. Stock Market: The Honest Comparison
The comparison to stock market returns is frequently made in LEGO investing discussions. A few important differences to keep in mind:
- Stocks require no storage, no packaging, no shipping. They are infinitely liquid and divisible. You can sell $500 worth of index fund in seconds.
- Stocks compound through dividends and retained earnings. LEGO generates no income while you hold it - your return comes entirely from price appreciation at the point of sale.
- Stock returns are averaged across the entire market. LEGO returns of 11%+ apply to the sets that were selected for investment by researchers - sets that retired cleanly, were in popular themes, and appreciated. Sets that underperformed or were never collected as investments are less likely to appear in the data.
- Tax treatment varies by jurisdiction. Capital gains on collectibles may be taxed differently than investment returns. Consult a tax professional before treating LEGO as a formal investment vehicle.
A Practical Approach to LEGO as an Investment
If you want to invest in LEGO with realistic expectations:
- Focus on sets in premium themes: Star Wars UCS, Modular Buildings, and Icons flagship sets have the strongest historical track records.
- Buy near the end of the set's retail life: Sets often go on sale as retailers clear inventory before retirement. Buying at a discount to retail improves your return multiple.
- Maintain sealed condition meticulously: Box condition matters. Store in climate-controlled environments away from direct sunlight, humidity, and temperature extremes.
- Hold for at least 3-5 years after retirement: Short-term flipping on LEGO sets rarely works well after fees and transaction costs. The strong returns come from multi-year holding periods.
- Diversify within LEGO: Do not put all your capital into one set or one theme. Like any asset, concentration risk is real.
- Keep LEGO as a small portion of your total investment portfolio. Most investment professionals would suggest alternative assets - LEGO, comics, cards - represent a small fraction of a diversified portfolio, not its foundation.
The Bottom Line
LEGO can be a legitimate alternative investment for collectors who buy the right sets, maintain them in sealed condition, hold for multi-year periods, and account for the real costs of storage and selling. It is not a passive investment - it requires judgment about themes, timing, and set selection. For collectors who love LEGO and would own sets anyway, the investment dimension is a natural extension of the hobby. For pure financial investors with no connection to LEGO culture, the transaction costs and storage complexity make it a challenging asset class to outperform simpler alternatives with.
Track your LEGO collection with purchase prices, current secondary market values, and appreciation percentages on CollectionPlnr's LEGO tracker.