I would be ok with leaving gear behind every expansion if they made the new gear interesting/good enough to make it worth it. I personally think the guns in general have gotten worse with each expansion. All of the VoG weapons have pretty great perks, with the extra Oracle Disruptor perk added under a damage node. The guns from Crota's End, while weren't terrible, the 3rd perk on most of them make them underpowered outside of Crota's End. Yes, disorienting wizards or shooting through knight shields can be fun/useful at times, but most of the time that perk is just a waste. Then the HoW guns... Nevermind that the ones with an elemental burn don't drop nearly as often as VoG/CE weapons, but when they do, they have extremely lame perks like shank burn... They couldn't come up with something at least mildly entertaining to make them at least situationaly fun to use? It's just pure laziness. Don't get me wrong, I'm perfectly fine with the old raids weapons becoming obsolete (even then I'll save a few to use when I get bored and run the old raids), but for god's sake make it so we [i]want[/i] to leave the old stuff behind for bigger and better things. Don't just force people to adopt some crappy guns with horrible perks just because they're "new"