Researchers looking at the appreciation of unopened Lego sets on the secondary market have found that they have done pretty well.
I was surprised to read that only about 10% of the sets lost value over time. And, unlike stocks, if a particular choice does poorly, you've got the option to "liquidate it" by tearing off the plastic wrap and making a spaceship or Tyrannosaurus with your grand kids.
So, good returns and apparently not well correlated with the S&P 500, so a good diversifier.An analysis by two Russian economists has found that "investing" in new, unopened LEGO sets yielded an average annual return of 11% between 1987 and 2015, outperforming the Standard and Poor's 500 Stock Market Index over that time. Moreover, prices of old LEGO sets tended to increase steadily year over year, experiencing less volatility than the stock market.
I was surprised to read that only about 10% of the sets lost value over time. And, unlike stocks, if a particular choice does poorly, you've got the option to "liquidate it" by tearing off the plastic wrap and making a spaceship or Tyrannosaurus with your grand kids.