LEGOs as an Alternative Investment?

So the other day I read this article by Bloomberg saying that over the past decade some lego sets have brought higher returns than the S&P 500. Is it theoretically possible to invest in lego toys as an alternative investment and treat them as an asset class?

I used to build legos when I was a kid but who knew they could bring high returns as an investment. Link to article below

https://www.google.com/amp/s/www.bloomberg.com/amp...