That whole hobby is just a failed business idea really resonates with me. Previously, hobbies were just hobbies, but now, most of my "hobbies" are either a result of financial curiosity, or just short-lived hobbies which will be replaced by others if they don't prove to be profitable. I believe it can be good to sometimes sit back and think about what one would like to spend the money on, because often, those things you appreciate more than money, might be your true hobbies.
Great episode!