I just started it because the photo section of the site is loaded with people posting their new gear, so it makes me curious.
Myself, I usually get a pair of goggles and gloves each year. This year I'm coming up on needing new pants and gloves, and next year I'll need a new jacket if I get to ski at all.
Skis I got 2 years ago, jacket 3 years ago, pants 3 years ago, boots 4 years ago, bindings 2 years ago, poles 3 years ago (bent in so many places, I love them), helmet 4 years ago, goggles last year.
It just seems like people are spending a lot of money on getting "cool" gear, so it makes me wonder why, considering they can use that money for travel or something a little less material.