I was having a discussion with my brother yesterday, and he was telling me that he really doesn't pay attention much to the raid game anymore. Back in Everquest, he used to be a pretty hardcore raider, part of a giant guild that could field raids of 100 or more people, ready to track down and kill bosses the minute they spawned (since they were never instanced, you only got kill each boss around once per a week on each server). Because so many people were needed, and you might not even get to kill some bosses some weeks because other groups would beat you, you might go months without loot.
Because of this, he says, he doesn't really care any more about server firsts or world firsts. The 25 man raids don't really interest him, and he doesn't feel like 25-man raiders are worthy of respect. They get loot at a much faster rate than he ever did, and even if they don't get the drop they want, they still get badges. There's probably other people like him. There's also other people who may ignore 25-mans because it really doesn't affect them. They run their 5 mans, maybe an occasional Karazhan, and they really don't care what people do beyond that.