Trash is nice if its well done, I don't care if its time consuming, if I'm having a good time killing them it's fine. I really enjoyed Kara trash, they were very interesting, all them dancing, conversing, eating, etc. just made a nice atmosphere for the raid. Black Temple was the same in parts, they'd be just doing their own thing, not just standing there like "I'm a guard, come kill me I'm waiting".