Hi Rhino,
For the Rolex 24 even before Tudor they get very few. i used to joke that all the people in the stands I did not know were related to the drivers. The first 6 random people we asked....were related to drivers so I won that bet ( beer)
The 3 days of infield camping is very unusual usually only race night allows camping. I bet you could still find a second rate motel for $30 a night
Weather is usually nice and some interesting cars would make it worthwhile if in the area.