We just went up there for a class trip and it was a blast. we went in the middle of the week back at the end of may, its probably more crowded now but there is a great package kinda deal with the hotel we stayed at. I think it was treasure island?? or something like that, had an indoor waterpark and got wristbands for an amusement park nearby. Across the street was some kind of extreme action place?? but it had a couple of those gravity rides like a free fall and ejection seat and those multiple person swing things too (these things were all discounted bc we were staying at that hotel). The deals are out there, dont know about price wise, but overall savings must vary greatly depending on where you stay. Hope i helped.
EDIT:just remembered the amusement park it was partnered with was Mount Olympus that might help to narrow down the hotel if i got the name wrong.