it is excess inventory. Orlando is overbuilt with timeshares. I think AFVC and the government employees vacation club is all tied in with RCI (& maybe skyauction too?) Just be sure to research the resort of your choice before booking. I checked the government employee site & they have great resorts available for December like Fairfied Cypress Palms, Silverlake, Summerbay, Embassy Vacation Club, Cypress Pointe, Celebration World Resort, just to name a few of the good ones. Just remember the more people it sleeps, the bigger the unit (bedrooms). If you book one that sleeps only 4, more than likely its only a studio or small lockout unit. but for only $264 for a week, its still way cheaper than a little bitty hotel room!
I do not qualify to stay using the AFVC or government employee site but have used skyauction without a hitch. Great resorts. I think AFVC & the government employee sites are one of the best kept secrets (now that skyauction has been let out of the bag)