As mentioned in several posts, motorhomes are toys, not investments. I have never had interest in boats which is a good thing as I get sea sick. And, they are enormously expensive to maintain.
I don't want an airplane either. But, what I think might be nice is to buy into one of the programs where you have use of a private plane (advertisements in the Robb's Report). The plane is owned by a company that makes sure it's staffed and maintained to FAA regulations. I've seen plans that range a certain amount each year which is not that bad if you fly a lot. Currently, we don't fly that much anymore but used to and the convenience would be worth every penny.
Right now, I like motorhoming!
MM.