So I've been back and forth on a few packs for a while, and I'm about to finally take the plunge. I have found a few deals where the packs are cheaper on other websites then at a place like REI. I've heard great things about them replacing packs and such. My question is, if my pack wares out after a tru-hike or just general usage do they replace it even after extended periods of time? Or is it only within the first few months that they will take them back?