I'll have to disagree, even those you listed need a lot of stuff once you really get into them. I'm into 5 of those 7 you listed (the first 5) and of those the

I'll have to disagree, even those you listed need a lot of stuff once you really get into them. I'm into 5 of those 7 you listed (the first 5) and of those the only that doesn't need a substantial amount of stuff is books because it's just my Kindle. Between the tv, protective equipment and desktop computer with its screens and case that's a lot of stuff. Unless you consider a mobile phone or a laptop with a teeny tiny screen acceptable for computer games, tv and programming but that means you're not getting very deeply into it. Now that I think of it, these aren't anywhere near my hobbies that take more space/stuff even. For every hobby that doesn't need a lot of stuff, there's one that needs many kgs of equipment.