Never say never . . .I have an AP and I'm a Florida Resident, and there are times I can get a better deal through a third party than through Disney. Sometimes it's because I can get a value through a third party that may be showing sold out under the discounts on Disney's site, sometimes the room type availability is different so I can get a standard view through a third party when only the premium views are available through Disney, and sometimes the third party sites have extra discount codes that can be applied. I always check both, because just because Disney was cheaper for one trip, doesn't mean it will always be the cheaper option. I figure I book about 2/3 of my stays direct with Disney, and the rest through third party sites. I've never had an issue booking through a third party, and have received my room requests just as often as I do booking through Disney.