Thanks! If we try to go the same week next year I guess they would expire just as we go there...so not really worth it. I will have to follow some of the posts on DDP to see if that makes sense now!
As other have stated stagger your trips 11 1/2 months apart to get multiple trips out of each AP. Another rule of thumb is if your total number of trips exceed 10 days per year the AP is more cost effective. Don't forget you will also get the AP dining discount at many restaurants plus a merchandise discount for purchases that total $50 or more. You can also purchase the TIW card as an AP holder. This can be cost effective if you make multiple trips within a year. There's more to the AP than park admission.