I've purchased APs in the past (for WDW--I don't know about DL) and gotten excellent room-only discounts.
However, I'm getting the exact same rate as the AP rate for our upcoming trip in December--without an AP. There was a PIN code attached to my DH's name and it was a terrific discount. Even without the PIN code, the current room-only discount at WDW for Nov and Dec was not too bad, although somewhat less than the AP rate.
You don't have to buy the AP in advance, i.e., they don't ask you for your AP number when you book over the phone, so you don't have to buy the AP and hope you made the right decision.
You don't say what your travel dates are or how long you're going to stay. A lot depends on that, too. Also, if you plan to go back within the year, that factors into your decision, too, since admission media is not inexpensive!
And, with the 4/3 discount out, that is often a better deal--depending on your length of stay--than buying an AP and getting a room-only discount.
Confusing? Yes!
