Mopars at the Dragstrip

Just wondering why there are not more MOPAR's at the Dragstrip? I run the bracket points series @ a couple of tracks, and we average a little over 100 cars twice a month, & for every 100 cars, there are maybe 75 Chevy/GM, 20 Fords and 5 or fewer Mopars. Why aren't there more Mopar racers out there? I used to think it was cost, but when you get into Higher end stuff it's ALL expensive. Maybe it's just because parts aren't as readily available, or maybe it's just that in the area I live in doesn't have many drag race Mopars. What's everyones opinion on this, in a way it's neat to be one of Only a few, but sometimes it would be nice to have more.