just a couple quick thoughts:
epic bosses are no longer a breeze.
LTQs and SLTQs can no longer be finished through the energy glitch.
Raid bosses have started taking steroids.
Obviously there are stats out there to be had, but for low to 0 gold spenders, I think the stat curve has essentially leveled out. I only went up a couple mil since the last battle, compared to 8.5m since late december (I was at 900k at that point).