Interesting:

http://www.rvdoctor.com/2004/11/rv-chalet-best-of-two-worlds.html

That's a great idea for folks who spend a lot of time on the road. It would certainly make bugging out a breeze. Keep the RV stocked and you can be on your way, in style, in no time.

I do appreciate the idea of combining the home and RV to reduce unnecessary redundancies. The one big downside to me is that unless it's located in an area popular with the RV crowd, re-selling could be more difficult if that is in your plans.