For me, it's being at the end of a 2+ year gear-tryout-and-elimination in an effort to reduce my pack weight. It was successful (20+ pound baseweight shrinking to a 12 - 13 pound base weight - I'm still making the final choice of water filter, and still debating on whether or not to continue taking my chair kit.) However, now that I've pretty well settled on my preferred lightweight gear, I'm no longer buying and trying out even lighter options like I was.