If I had the choice of summer or not at all, of course I would go. But I would never choose summer for 2 reasons- heat & crowds. We have gone every January since 99, and snuck in extra trips Thanksgiving 02 and early October 03. I have been there in January when its been 30 and when its been in the mid 80's. Im from Pittsburgh, and we go to WDW when its freezing here. I want it to be warm, but not hot. The year it was in the 80's, was hot!! I had a 3 month old with us, and I remember being at animal kingdom and everyone being all sweaty!! blah!! We also had a heat spell this past October while we were there. IT was a little more crowded in October, but it was HOT & HUMID!! All I kept saying was "im never coming back in early october" lol We went then so we could do the Mickeys Not So Scarey Halloween Party, and we all dressed up. It was hot hot hot that day. We went to Blizzard beach first, then to the party. I was sweaty all night. I kept thinking, it will cool down, it will cool down. Well, it never cooled down..haha.. WE left the party at midnight and I was STILL sweaty. I can not even imagine standing in long lines in summer with the temps at their highest. Id much rather have warm days, cooler nights and wear a sweat shirt if needed. Is there any way you can go at another time of year? Thanksgiving works well for us because our kids are off 6 days. Im sure no matter when you go you will have an awesome time. Ive just been rather spoiled by going in the off season with no crowds and usually no sweltering temps.