If you're traveling constantly that could be true, and expensive. A large segment of RVers are snowbirds, driving from the northern states and Canada to primarily Florida, Texas, and Arizona in the winter. They either tow a car behind their motorhome or use their trailer's tow vehicle for local transportation. Set up in a RV park and pay by the month which is much cheaper. Many say it's cheaper for them to do that than pay for heat in the winter where they're from. Enjoying much milder winters. If what you said was true of everyone then few would do it. But there are millions of RVers and well over a million fulltimers. They follow the seasons enjoying cooler temps in the summer at higher elevations then head south for the winter. Or stay all year in a park they like.Might not be bad if your 30, but 60? You have fragile health no insurance then you have a costly medical emergency. The question then becomes even if you can make contact with emergency services.....will they even be able to find you in time?
Going through all this just to save a few dollars per month? Sitting out there with the rednecks rocks and rattlesnakes?
My next door neighbor Jack and his wife tried this. As Jack said, you needed an RV just to have a reasonable measure of comfort and security while traveling. But the time it takes to finally get there, get leveled up, set up, unpacked and finally in place you're worn out. Then a few days later when your time there has ended you have to go through the entire tiring process in reverse. They're clumsy, slow and a holy fright on gas.
They came back after a few months sold the damn thing then spent their final days sitting out on the back porch...in peace.
I've met really good people in New Mexico. Better them than the snobs and snakes back east.