A lot depends on the track, as far as passing. Certain ones are near impossible to pass on, so they are a bit of a snooze. I went to my first one in the mid 80's in Montreal(which has a good track), expecting little, and loved the speed, massive noise, and the ability to find a vantage spot just about anywhere. What i do find boring is when one team has a big car advantage, but this year it seems to be leveling off.I want F1 to be better. There is just so little passing that it sets it back for me. I've been to one F1 race, and it was the best sporting event experience I've ever had. The car and race were cool to see, but the passing at that trace is almost impossible. So the race was a sideshow more than the main event.
NASCAR has really fallen down my list. It used to be must see tv for me. Now I might look at the standings once every month or so.
Watching on TV...ehh.... I'll do something else at the same time then play back the highlights.