I sponsored a camping only event several years ago near Green Cove...a few miles from the Cherohala Skyway between Tellico Plains and Robbinsville. We had 25-30 guys show up in a variety of vehicles. Some had motor homes, some had tents, and I suppose there were some in betweens. It was mostly a dual sport get together, and we had several fun rides over the weekend. But we weren't far from some excellent paved roads either.
My first camping event was STAR in Nashville, Indiana, where the Indiana squadron had gone out of their way to make arrangements for camping. Since then I've camped at a number of events. At some events I was the ONLY person who camped. I still enjoyed it. And yes, cost of a hotel room does come into play. At TN-STAR I used to keep my room open 24 hours to allow campers a place to shower, etc.
At one STAR in Avon, CO, I was the only person camping, and I had to go to a NFS campground almost 35 miles from Avon. But it was cool. The campground was otherwise deserted. There was a fantastic rushing stream running by my site which made for wonderful white noise to sleep by.
So yeah, I'd be up for a camping event.