The highest car counts are always in SC and SG! They race just as hard and deserve a chance to run National Events too. They are mostly family affairs and buy a lot of tickets, hot dogs, and "stuff" at the tracks.
That being said, I am have never been a big fan of the classes. If I had my way, both Top Dragster and Top Sportsman would be added to the traditional event rotation, where the various Sportsman classes skip an event, and then they would get an even change to run a National Event across the US.