It's nice to see that even in these tough economic times, humans can still dream big, man. (Srsly, I so want to do this. But not badly enough to, um, go to Arkansas...)
I dunno, I think that would be an awesome road trip! Maybe in a year or two a few of us can do a road trip down there and cosplay future characters going "OMG THIS IS SO COOL! THE TARDIS LANDED US IN THE PAST!" and annoy the hell out of the people running the place ;)