A good friend of ours bought a big diesel Class A a couple of years ago, because his wife was having mobility and balance issues on the boat. That lasted about six months.I love the idea until I hear of some of the 'anchorages' for land yachts.
Then I think of a nice room or B&B for a few days, a light travel bag, comfortable transportation,...
I asked him what the big problem was and he summed it up pretty well. "You have to stay in RV parks, where you are cheek by jowl with your neighbors, who always want to talk about their RVs. Have you seen the kind of people who stay in RV parks?"
Sadly, his wife died, but he is back on his boat. If he doesn't like the neighbors, he ups anchor and moves to another anchorage. It's pretty easy to do that in Maine.
Even if there are multiple boats someplace, the occupants rarely bother you. Even if you know them, you don't necessarily do anything but wave at them from a distance.