I saw an Airstream parked at the Buena Park service center/showroom. I asked a sales associate if I could borrow it for the weekend now and then if I purchased a model X. He explained that it was a mobile design center that they take to events and it was just parked at there location for a while.
Wouldn't if be cool if you could borrow/rent an Airstream a couple of times a year for a road trip!