So, I've recorded all of the old races and watched a few this week. In the 1965 race, the announcer said that they had 90 entries. In the 1969, they had 60.
All of the different makes, models, engines...how cool.
I'm still a 500 fan. But the vanilla racing it offers with spec cars takes away from the sport. I would imagine that people much smarter than I could create a F1000 type series for the pro's.