I have been 80 for a few weeks now with the team, originally my pally got to 80 and started to run heroics. I can clear UK no problem, I can clear Gundrak with some difficulty on second boss, first boss of UP for an easy emblem, DTK for an easy few other emblems, and CoT for another few easy emblems, take maybe an hour if everything goes well with every instance, per instance. So that's 3 in UP, 3-5 in Gun if I feel like clearing it but sometimes second boss gets frustrating and I just say screw it, 1 in UP I only do first boss, I get my butt whooped by other bosses and gauntlet sucks. And CoT in itself is an easy 4 other emblems, so 3+3 to 5+1+4= 11-13 for me so not too bad and the rep I make with the given place I am running for is great, that is one thing that the heroics have over running Naxx, there is no rep gain in Naxx at all. And then you dont have to deal with the horribad PUGS you can get into, any PUG you get into can turn out bad so why take the chance when you have your own group.