Perhaps, RV sales are up because want to be mobile with the ability to move at any time to a location that is safer, I had good friend that retired a few years before me, he and his wife bought a big RV and sold their house and traveled to a cooler location in the summer and warmer location in winter all in red states.
If you can’t afford two houses in different climates, the choice of an RV is a valid option for people who want options on their residence.
^^^^^^^^THIS!^^^^^^