My point is that less than 100 million people in the US live in core urban places where the existing system of travel is more or less convenient for them, assuming that when they travel, they want to go to another core urban area, rather than to someplace like...Wyoming. 225 million people + or - live in rural, suburban or small metros. When we want to travel, we have to get to the urban center, be herded onto a huge airliner, then do it all in reverse at our destination. And it costs just as much or more.
Here in the Rockies, there is a network of smaller planes and Lear jets that take people to the ski areas. It's getting impossible to go by car anymore, especially when you want to come home on a Sunday afternoon.