Most USAC drivers have about as much business driving a rear engined 200+ mph Indy car, as most IRL drivers do driving a 850hp 1,300lb Sprint car...

Times have changed in almost every form of motorsports, except for sprints and midgets. The only real change for them were from the Offy to the V8.

If you want to race NASCAR, start off in Modifieds and Late Models (and now Sprints & Midgets). If you want to run rear engine pavement cars (F1 or IRL), start off in Karts, Formula Renault, Formula 3 and GP2.

BTW, it IS okay to enjoy different types of racing. I find some sort of enjoyment in pretty much ALL forms of motorsports.