And who said I want ret for group work? I enjoy tanking, and everyone and their mother is DPS. As you noted, ret and prot share strength and stamina as their critical primary stats, which is a lot more than prot and holy share. With tanking gear on, switching to ret and switching out trinkets would be enough to give me a bit of DPS fun in PVP, whereas prot and holy share absolutely no stats (you're not even going to really get much benefit from increased expertise). I enjoy WoW, but nowhere near enough to acquire two sets of epics.