Let me put it this way: It is well known that driving 55mph on the highway is more fuel efficient than driving 70 to 80mph. Gas is getting close to $4.00 per gallon. I go 55 to 60mph on the highway and most people are still whizzing by me with barely enough time to shoot me a dirty look for going so slow.
I guess it's much easier for people to complain, go broke, or buy a Prius than to alter their driving habits. Going slower is very simple, but if people aren't even willing to do that, do you think they are going to pay for a course that teaches more complicated techniques, such as not tailgating?
Am I being too cynical?