Walt kept insisting that Epcot needed to be built first or it would never get built. Walt died while they were having those arguments. So Dad [Roy O. Disney] won by default and he regretted winning that way. Walt probably would have been surprised to see what it all is today. Epcot, of course, was supposed to be a real town where people would live and the final thing was much different.

The Roy E. Disney Interview[mouseplanet.com]