Yes it would be but there are some people who own their mh and rent the lot.
Still it seems renting a lot inland would be cheaper than renting coastal land.
If I get a mobile home, I would go back to the concept that mobile homes originally had --- and that is be mobile --- I envy those with RV's who just pack up and move when they don't like the weather they have or what is forecast. You could be on the coast of Florida one day --- see the hurricane forecasts --- and be in Tucson or somewhere else a day later.