Very interesting! One thing I just wanted to say is that some RVs contain unhealthy levels of formaldehyde and probably shouldn't be used as a permanent home.

I guess you just have to choose your RV wisely.

Links to what I'm talking about:
http://abcnews.go.com/US/Health/story?id=3240532&page=1
http://www.roamingtimes.com/environment/trailer-residents-sue-rv-manufacturers-over-formaldehyde-levels.asp