Advantage of buying in bulk: a few years ago I bought a dozen AMK bivvies from Red Flare Kits, they offered a really good price that netted out ~$9.xx per bivvy. But that gave me flexibility to put a bivvy in the bottom of every daypack and backpack I own, and not have to switch them around when changing packs. When I only had one AMK bivvy, alot of the time I'd head out on the trail with the wrong pack and therefore without an emergency bivvy. Its been great to have a bevvy of bivvies - and I've given some away as door prizes to Scouts and such. I imagine you'd feel the same way staring at a box of flashlights instead of just one or two.