So an update on the AAA discount.
Only available through AAA South, but you do not have to be a member of that branch. They will sell them to any AAA member if you call and ask. I called over the weekend the main AAA South number and was told that you have to call an actual office to make the reservation (since they are day specific, you're not just buying a park ticket). She gave me the Kissimmee office, but they are only open M-F. I called yesterday but they were sold out for our entire stay. (DC is not sold out, just the limited number of AAA tickets).
I have the phone numbers at home so I can't post them, but you could just look up the Kissimmee AAA number online.
Hope this helps someone else.
Also wanted to add the price was not much different than buying directly through DC depending on the date. For the day we wound up doing, AAA was only $10 cheaper ($299). However, the day before (which is the day we would have preferred) it was also $299, but that was $40 cheaper than the DC price.