The investment strategy for Bitcoin has always seemed pretty simple to me: It could be worthless one day, but there's also a chance it could be worth 10x or 100

The investment strategy for Bitcoin has always seemed pretty simple to me: It could be worthless one day, but there's also a chance it could be worth 10x or 100x or 1000x as much. That asymmetry means investing even just a small amount (that you're comfortable losing) is an obvious choice. It's also a fascinating technology (politics and monetary theories aside) and having some "skin in the game" makes you much more motivated to learn about how it works.