For curiousity's sake, I decided to check to see if they had the rates for President's week next year. We always do some kind of local trip for 2 or 3 nights that week (usually with a group of families) and we have always been looking for a new places to try...that have reasonable prices that week - no easy task. So for 3 nights that week at the Poconos GWL, the same room we just had (the Kid Camp suite), it is $439.99 per night. And I'm sure it will go higher as it gets closer to that date. By comparison, at the Williamsburg, VA GWL the same room for the same 3 nights is $259.99 and at Sandusky, OH it is 209.99 per night. I wanted to check Niagra Falls as well, but they are not showing rates yet for those dates.
I don't know how many families you travel with, but my friend (who's Dh is a teacher) books a block of rooms at a discount rate every year during a time when the kids are off. She encourages everyone to send out an email to their friends as well, to make sure they have enough participation for the rate (never been a problem).