It's also a problem that our culture is so damn obsessed with cars, which we have in part to thank the auto industry shoving itself down consumers throats, lobbying, and running into the dirt other viable modes of transportation for almost a century. I'd take sophisticated, public transportation and efficient inter regional lines any day over American Car Culture.
I just don't think you can lament the state of inter regional transportation in the US without talking about our country's very unique obsession and history with the auto industry.