And while you may now see the advantage in remote areas, do not forget that when you get faster out you get in faster and the amount of people (and hence general noise) will increase so much. If a commute of one hour is acceptable for most people, its just the range those people live in that increases. And even if traffic is not that dense, some 100 dB noise every 2 minutes can be as annoying as a busy street nearby.
I always have the feeling that people always just look what they could do if they had this kind of technology and not what other people might do with it.