Alcoholism (beer/whisky/wine/whatever snob) and masturbating are always good hobbies to have. You could probably wring some “prestige” and profit out of these if you’re so inclined, but I don’t think that’s on the cards for majority of people. As a somewhat proud beer & whisky snob, it’s great hobby for burning your excess money too :)
Weird flowers and about 50% of all things living in the sea