There is a big difference between taking a cruise for a couple weeks and fulltiming in an RV. Same as there is between fulltiming in a sailboat and taking a two week vacation in an RV.
It sounds as if the OP is not interested in traveling in an RV for any length of time. In that case, it sounds like they are making the right decision.
For many others, while fulltiming is not something they would ever do, taking several two week vacations, or a bunch of weekend trips, in an RV would be ideal.
For me, "living at the Galleria" would be hell on earth.