Started to reply 3-4 times and never really had a good answer.
I always liked old cars because they have soul.
Dad raced a boat, I had a hot rod pick up in high school and had two older brother who were more into muscle cars. I got in trouble street racing with a Chevelle and a V8 Vega. Grew out of and could not afford to street race anymore.
Fast forward to a muscle care restoration that drove me nuts trying to find that one last NOS piece, and finally a job that included selling racing fuel as a key component.
One of the teams that I chose to sponsor was a JR fuel car. That was the team that I spent more time with and learned about the whole nostalgia racing, dare I say "Life Style" Nostalgia racers were more friendly, more willing to offer help, parts, and waaay more laid back than any of the other racers I spent time with. (Second only to drag boats, but that is another story). I was hooked, traveled to some great historic tracks. Indy, Bakersfield, Bowling Green, Cordova, and my favorite Ardmore Ok.
Happened to be visiting a guy with a FED at a Super Chevy Race in 99? and he had a roller for sale. Since selling fuel was part of my job and I knew the FED would get more attention at the track than anything else I could possibly drive, and the fact that I would never drive a FED on the street and get thrown in jail again. I bought it, built it and played with some local groups, had a blast. Bent that one and just ordered some new pipe about a week ago so I can start over.
Nostalgia racers tend to play well together and FED racers have more opportunities to race. You can run index classes, brackets, and many organized nostalgia events.
I suppose the same could be said for Altereds or Funnys. I just don't have enough friends to lift a funny car body all the time.