Again, I don't think you have a practical understanding of the logistics necessary to accomplish such an exercise. O'Hare's most recent expansion involved a decade of litigation an an effort to acquire space near the airport. People's homes were taken by eminent domain and an entire cemetery had to be relocated. Granted, the expansion included new runways, but building an entire new complex would be virtually impossible near many major metropolitan airports because they are surrounded by residential and commercial enterprises that aren't easily relocated -- many of which exist near the airport because their business is aviation-related. And again, I know few people who would drive PAST the airport to go to the airport. It's a tremendous waste of time.