I'm not trying to argue whether or not an RV or a cheap house is going to be less expensive, a question I am not interested in. It's in disputing the assertion that you can't afford a home and transportation for less than $25k and the idea that your only choice is an expensive inner city apartment, a mcmansion, or a van.
I don't own an RV, but I've owned two houses and I'm guessing the RV monthly expenses will be quite a bit lower.