There are discounts on some restaurants. Not great but better than nothing. We never use those because we have Tables in Wonderland. TIW is one of the best discounts you can get with an AP. You pay $75 (I think) for the card and you get 20% off at almost all the sit down restaurants, including alcohol. We use that discount a lot.
Room discounts are around and they are usually pretty good. There has also been 10% off merchandise at gift shops. Again, not a great discount but better than nothing. I am not sure if that one is still in effect or not.
There are discounts on some recreational activities also. We don't really use those.