I talked with a guy living in a motorhome in Mountain View California, he works for Google. He could certainly afford an apartment but said his payments on the motorhome are about $600 a month, and an apartment close to Google would be $2500 a month at least, so he feels like its a free $2000 a month to save or spend. He's fortunate that Google also has nice showers, free food, and laundry. Things he might otherwise have to find other options for.

I can't argue with the logic. It means $24,000 a year to apply toward student loans or what have you isn't a bad deal. And he will eventually pay off the motorhome giving him some security there.

Sadly, most people won't talk about their situation (I tried by walking down a road and knocking on doors) I was hoping to get a sense of how many people were living in motorhomes because they wanted to (like the guy I talked to) and how many were there because they felt they had no choice. I don't have any good ideas on how to get that information.

I did enough research to know that building a small lifestyle business out of offering black/grey water pumping and garbage collection services for the folks who were doing this by choice was probably viable. You would need a couple of custom trucks[1] that were capable of being mobile RV dumping stations and a business with sewer rights to dump (the City of Sunnyvale will license a business to have an RV dumping station on site, so starting there would work.) I think it would be a "pump and dump" scheme that would be both good for the neighborhood and probably make enough money to employ a few folks.

[1] To be full service you'd probably want a fresh water tank, a propane tank, and a sewage collection tank. Then you could dump the grey/black tanks, refill fresh water and refill propane. Personally I think it makes way more sense than these companies that were sending trucks out to refill your gas tank.