I was checking out Airstream stuff on Ebay and came across an interesting listing. A couple in Tampa, Florida, purchased a '56 Airstream and renovated it into a really nice looking camping unit. They rent it out for $125 a day at the campground of your choosing within 40 miles of Tampa. They set it up ready to camp, and come get it when the customer is finished.
This is a really interesting concept and a neat idea. You can check it out on their website, Silver Bullet Retreats - Vintage Airstream And Camper Rental