The thing is though that no one wants to do hard dungeon just to the difficulty(see challenge modes). It has to drop gear, and if there was a really hard 5 man that dropped gear you know the QQ would get it nerfed into Oblivion. IMO, the kind of 5 mans I weould want would be like the 3 that came out at te end of Wrath, Pit of Saron and whatever the other 2 were. They weren't easy but werent too hard. Either way Bliz nerfs to do whatever's necessary to keep them off of faceroll status. 5 mans that you run for a whole expansion shoul stay relevant for longer than a month.