[REDNAX]

There is a big difference that needs to be noted for full-timing versus several annual trips.

Full-timing:
Only needs own one vehicle
Highly reduced "home expenses"
Limited only by time and energy dependent on income.

Part-timing
May have to own 2-3 vehicles per two people
The expenses of a home
The additional expense of the TT/TV
Etc

It might seem that the latter has more opportunity what with two incomes or more, and the advantages of relative youth. I notice, however, that for both my maternal granparents and parents, that the constraints of fixed income were more than matched by time. Time to really plan a trip, of strong feelings on where to go, and the knowledge that high winds one day might be gone the next.

My parents bought their trailer just before we kids entered college (and they had ten straight years of tuition, etc to pay), but they then enjoyed [18] years of travel as they saw fit. At one period the trailer was parked at a lovely lake nearby, and that had to suffice. Being a Silver Streak (with it's dirt simple suspension), after it was cranked out of the dirt little more than new tires and a brake job were necessary to make it roadworthy.

Once they "retired" (not really), the trailer was on the go for close to half a year at a stretch. Other years it went waaay out, stopped, and then rolled all the way back. More to it than the price of gas.

I believe one can distinguish between full and part-time travel AND for fixed location vacationing. Might be one could haul the trailer to a new spot for another couple of years, then move it again. Etcetera.