I went to Texas a few years ago. My seat was just at the entrance to turn 1, 18 rows up. I could look almost straight down pit road, and the cars were going by me at 195mph. I've got some pictures somewhere, I'll see if I can find them to give you some idea of what you'll be looking at. If I go to a race again, at any track, I'll sit somewhere between the finish line and turn 1.
Where I was sitting, it's loud. Don't plan on talking to anyone because you won't hear them. Just bring a cooler of beer, sit there and watch cars drive around. It's pretty cool when the cars are up to speed all together, because you can feel the air they're pushing before they get to you. It's a cool enough experience that I think people who aren't NASCAR fans would have a good time. It does get pretty long though.
2007 GMC 2500 Duramax
1991 GMC C1500 350
1981 GMC C1500 454