Just to continue the mixed metaphors a bit more, if home is where the heart is, and a mans/womans home is his/her castle then by extension if your hearts in Disney World are not you accommodations there your "castle"?
In the early 1980's the Disney corporation feared the possibility of a hostile takeover. At least one of the elements that made Disney a target of a possible takeover was seen to be an underutilization of it's assets. For the studios this may have meant they were not making enough movies each year, at Walt Disney World however, this was illustrated more by the rapid rise of the value of the property comprising the resort. All those acres of land that a company coming in to buy Disney might sell very profitable chunks off of, For instance if lots were sold along World Drive between the Magic Kingdom and Epcot center, what hotel chain wouldn't want to buy in. So after Michael Eisner came in steps began to be taken to increase the utilization of the very valuable real estate. Now some of these things may already have been planned, but I think few would argue that the aggressiveness of the pursuit wasn't kicked up a notch (or several). With serious goals for each of the companies business units to meet. Also, with the opening of Epcot the average length of stay at Walt Disney World continued to increase.And don't think that other hotels hadn't noticed the number of folks staying more nights at Disney as Epcot opened, it's probably not any coincidence that the fist hotels to join the Walt Disney World village since it's inception, The Buena Vista Palace, and the Hilton opened in 1983. This gave a very real opportunity for great growth in the already arguably under built Disney Hotel business. I say arguably under built because they were only going after a fairly high end section of the market, and possibly they felt that they were not even capturing enough of that because one of the first two Disney operated hotels opened during the Eisner era,The Grand Floridian, was going as far upscale as Disney had ever gone, the other resort that opened in 1988 went for what is not referred to as the "moderate" market still not cheap, but less expensive than any resort hotel at Disney had been. Don't forget though, Ft Wilderness still holds the lowest cost per night to just plain "stay on site".