There is just too many god dam stuns, silences, interupts, slows, CC etc to enjoy pvp that much.
As a healer If I have 2 dps on me they can kill me in 5-10 seconds without me being able to do a thing about it. If I fear they just trinket it or some other crap.
I hope in mists of pandaria they remove all this cc crap. Not everybody should have 100's of interupts.