I might just start buying art. I run into tons of art in yard sales and the likes, and while I do feel a slight impulse to buy a few that catch my eye, I usually hold back because they're usually expensive and take up a lot of space. Not only that, I already have a record and book (*among other things!*) hobby that I am invested in and can't really invest in yet another hobby, especially since 60 dollars can get me, like, 120 books if they're all 50 cents a piece (and they usually are, paperbacks at least, where I look). But then if that $60 was for a Banksy piece worth a couple of thousands...
But while they may be $60 now, will it guarantee thousands sooner or later? I'd be worried that this became a repeated 'thing', which would drag down the rarity of signed pieces, as well as the issues of counterfeit pieces, black market prices etc etc. Actually, don't mind me, I'm just trying to make myself feel better because I'm missing out on the chance to buy one haha.