I can’t really compare to my other hobbies because they are all inter-connected (larping, re-enactment, sewing, embroidery, even dancing), but hearing about other people’s hobbies, like aforementioned paintball usually makes me go “eeeek, they spend a lot of money!”
I can spend much on something that is really cool, but I do re-use most of things, and after more than 6 years of larping I have gear pretty much for anything. I spent $109 on a wig for a larp, and my biggest “gear and treats for mates” spend for a weekend larp was $250 (not including costume and weapon, the majority of this was apothecary kit). I keep re-using those things and will be re-using them for many more games, unlike figure ice skating boots, the potion bottles and toy guns don’t need yearly replacement
Same goes for supplies, lots of my St Wolfgang potion components ended up in my lunches (and I won’t even mention 4 kg of rice bought SPECIALLY for making spell packets for Jade Empire… well… I just ate it all
). My 1920s - 1930 garb also tends to migrate to my everyday wardrobe, so the line of expenses between hobby and normal stuff is blurred. I don’t know if hockey players and paintball guys have something like that going on.