We got APs for this last year. At the time, we thought we'd go to WDW for three weeklong trips. In that case, on the third trip, the tickets would have been "free".
Well, our plans changed and so we are going on a Norwegian cruise instead of the third trip. So, APs haven't saved us as much as I originally thought.
But, on top of the savings on the ticket prices, we saved an additional $150 on our room on trip 1 and $100 each on two rooms on trip 2. Plus, we saved at least $100 with the DDE card. So, over the tix, we saved $350.
You may want to compare the price of APs versus the price of buying 10 day MYW tix that are Non-Expiring. It may make more financial sense to get the 10 day Non-Expiring tix.
I hope this helps!