Clearly when you look back everything you had to do in Vanilla, BTC and Wrath was hard, but still everyone loved it and ended up telling their RL friends and had them switch to or try WoW, I think after wrath things got allot more simpler and people didn't find any challenge in doing normal dungeons or group quests, I often wonder what if Blizzard decided that now is a good time to bring those back, now that they don't have to answer to Vivendi anymore, would this also be the reason they are stopping D3 RMAH?