It will also be hotter, something to consider! less crowded for certain... you could more likely do water parks then do to the extra heat, we went the last week in october we had VERY hot days (i live in georgia for a heat referance) and some pretty darn cold i need pants days too. Also you will have to work around the halloween parties because magic kingdom closes at 7 for some days for them... i went to one once didn't think it was worth the money but to each their own... but what i did love was the haunted trail ride i did at fort wilderness... it was a carriage ride with the sleepy hollow story and at the end the real headless horseman rides up all in your face it was great and only 60 bucks for up to 5 people (2 adults, 3 children) i had to call disney reservations directly to get it and it wasn't really advertised i heard about it from word of mouth.