We got our passes for 2000 at the AAA office at a small discount, but every dollar saved is good. I don't know if they still do this but I asked for a parking pass for upclose parking to the parks. It is by the handicaped section. It was a real treat at the time the kids were using strollers, so that was much easier for us to drive to the parks. I think it is called diamond card.
We are going in Aug this year and I will ask again if they have it.
You can also get a discount on your room only reservation if you made it thru WDTC or CRO. Just call them and ask for the AAA discount they will need your membership number and your card at check in.