Which, given times we live in, makes them look like a great investment. Just look at which stocks made enormous gains in the last 10 years! Perhaps the only large company that did the real thing is SpaceX but you can't buy their stock. The rest sold us bullshit or tools to build even more bullshit (Nvidia that gave us crypto, then NFT, then "AI" - my pet theory is that all of this stuff was invented by their proxies to boost GPU sales).