Yeah, that was the one issue I had with endgame. I don't raid, and I'm not always craving a super-challenge(if I did, I'd try to raid..), but Zul'Gurub/Zul'Aman being the only two hardest 5 mans was blegh. I took a break until they would them into the same queue or release new dungeons(i.e 4.3).
There was the option of maxing out valor by doing cata heroics, then the troll ones though.