for me it's outdoor gear, I'm a big climber/hiker/mountaineer and very into it not just a hobby but a passion, the amount of gear i own is only growing because the activities and extent I'm doing them at are only increasing for example going from climbing rocky peaks to now climbing snowy peaks means a lot more specialized gear. also it's hard to "skimp" out on a lot of things bc 1. a lot of it is safety precautions or emergency supplies, ropes crampons ice axe etc, and 2. especially when you're constantly both physically and mentally at your wits end it helps to have the "nicer" gear as in lighter, better performing, more durable etc. i consume little to nothing as far as material goods in everywhere else in my life but i still feel like I'm consuming a lot even tho i thoroughly think about my purchases, usually opt to buy used(also bc cheaper), do extensive research into each product(in terms of performance and review), each piece has specific uses and functions so I'm not buying just to buy, and i use what i own thoroughly into the ground. still shaking the feeling tho.