To each his own. NASCAR is a different kind of racing than F1, and attracts different kinds of fans. Is it possible they might be able to have an uninterrupted discussion about it?
NASCAR is the other end of the spectrum. Competition amongst makers is artificially enforced, and easier to do with yesterday's technology. A case can be made that it's a better show - which it is, to someone who wants to see close racin' and controverisal finishes. It's not a good show to someone who wants to see tomorrow's technology and hear what 19000 rpm sounds like.
To each his own. I can appreciate both. But what I really LOVE to see is NASCAR on road courses. It's a blast to watch.