I just saw that (along with a bunch of other campers/trailers/rv's) on a Travel Channel special a few months back...had some neat stuff, and about a half hour worth of tear-drop trailer coverage...I love camping...
On the way back home from the Pate Swap Meet on Friday we saw a motorhome heading north on I35W made from a Spartan travel trailer, very cool. Now, that would be a grin camping.
They used to use a rig similar to that here in the corner of southwest Missouri/northeast Oklahoma. It replaced the streetcars at the last....as I understand it. I haven't been able to find any good info on line about it, however.