Well, yes and no REWahoo. Four allows you to move whenever you want. You just rent wherever you want. But I think I understand what you are trying to say.
If you ask winger for example who wrote, "Last year, we wintered in far south Texas, spent a month in the Texas Hill Country, almost 3 months in Gunnison, Colorado, and a month in Oregon.", why they moved so few times, the answer might be interesting to someone like 2017ish who is thinking about a B class and no doubt thinking about travelling around moving every few days and seeing everywhere of interest to them on the continent.
Initially people tend to envision moving a lot. Then they discover the downsides of that. Do you tow a vehicle to be able to go and get groceries or do you have to pack up your C class each time and then set up all over again when you come back from the supermarket? If you get a big enough 5th wheel, do you accept that you may find small places you just can't get to with it. Every tried to take an RV to visit Chaco Canyon? Here is what they say, "The northern and southern routes include 13, 20, and 33 miles of dirt roads, respectively. These sections of road are infrequently maintained, and they can become impassable during inclement weather. If you have an RV and are not planning on camping in the park, you may want to leave the RV and drive a car into the park." My bet is winger's wife is not going to let him go there and have her stacked washer/dryer bouncing all over the place.
Some people may be willing to put up with the inconveniences of RVing for a while because of the conveniences they see to an RV but most end up coming to a point where they move less and less. Then they park it for months or all winter, in one place. If you're gonna end up their anyway, why not start at where you're gonna end up is what I'm saying.
For that first exploratory phase, it's cheaper I believe to travel by car and stay in motels. RVs are not an asset, they're a depreciating asset much the same as a car.
For an idea of how much they actually cost you, read here.
Should I buy a new or used RV?
If you take the cost of depreciation, maintenace, fuel, insurance, campground fees, etc. and add it all up, RVing is never cheap and the more you move the more expensive it is. So I say buy a used Miata or something and drive that first year or two of retirement enjoying the 'open road' top down.
http://pictures.topspeed.com/IMG/crop/200609/2006-mazda-mx-5-miata-3_600x0w.jpg
Then skip to phase 4, renting by the month in the places you liked enough to want to go back to.
That's just my opinion of course.
