The boat was pretty stinky too - and always noisy at night. Some kind of weird pump always running or something. They had a lovely kitchen with granite so it was not a low end boat - but for day in and day out living it had a lot of drawbacks.
Having a house as a base and an RV seems like a pretty great way to go. You can go a lot more places in an RV - in a boat you are pretty stuck as so few places are easy and safe to get to. They were in CA which has suprisingly few destinations sea wise - they went to Catalina a lot.
Though I have a RV, I haven't spent more than a few days in it at anyone time. I can see were living on the road, unless you spend a lot of time parked, can cause a lot of stress too, finding a place to stay, dealing with traffic, etc.
I'm usually glad to get back home, so I can rest. lol