I'm trying to think of something more boring than NASCAR, but I'm struggling. I'd rather watch baseball (I don't know the rules and it is... slow), American football (I don't know the rules and it stops every 3 seconds), golf (yawn)... and that's saying something.
I mean, if you like NASCAR, then why not watch F1 instead? There's a lot more variation. Sometimes they go right as well as left. That's cool.