That's true but the shoulder season is very nice plus you have Thanksgiving and Memorial day, I believe. They trade very well from what I have read here.
Our friends go every year in June and November and the weather seems to be OK. I have never heard them complain and they have no difficulites making their reservations either unless you want to go during Thanksgiving week. This is not the same story during the platinum season as so many people seem to compete for the most desirable weeks.