hey they races road courses to, like 3 of em >_>
BUT even the super speedways require an extreme amount of skill, going 200 mph in a pack of 40 cars all inches from one another, sometimes actually pushing the car in front of them, the way the cars are setup to be on the absolute edge of control threw the turns. most formula 1 drivers that come to nascar, SUCK for their first 2 or 3 years and talk about how much more difficult and nerve racking nascar racing is then formula 1. but yeah, when nothing happening a nascar race on tv can put me to sleep to. Actually BEING there tho, totally different story, they are a blast to go to.
and on a side note, formula 1 would race those tracks if they could. they tried racing at texas motor speedway but they were going SO fast threw the turns and pulling SO many g's that drivers were blacking out in the middle of the turns, they had to ban fomula 1 cars from the track.