Buying drugs from the internet. Or are the kids not doing that anymore?

Having something you can transact with and store value that isn't completely vulnerable to your government's monetary and foreign policy/capital controls

Games, collectibles, lending, money markets, exclusive virtual clubs, international payments, trading are just a selection of activities I’ve personally engaged in on chain in ways I could not have off chain.

Also whether or not you like speculation, many people do and it’s not a crime.