Extended hours?

[CerysG]

I can't make up my mind if they are worth it or not as there seems to be lots saying don't go on these days as they are crowded and lots saying go on these days! When we were there last March we only did one extended hour and I don't know how they could tell you were a resort guest or not as everyone just seemed to stay. We are planning to go again next August (2013) at the end of the month when its suppose to be way less crowded so I don't know what the impact of the extra hours will be. Any thoughts on them from some of you vets?