I know several people have suggested staying off site, but the show is so much more enjoyable from your RV if you're right there at airfield. If you haven't been to the show, they have activities from sun up until well into the night. It's very nice to be able to go back to the RV to rest up for a few hours and then go back for more activities. We took our bikes and road them back and forth from the RV to the entrance gate. You can't take the bikes inside and once you're in you will walk several miles trying to see stuff.
I went last year as a stop in a cross country drive to take a car back east for my parents. So we stayed in a hotel about 20 miles from the airshow and drove in three days in a row. It was still fun, but I sure was wishing I had the RV close by.