My wife and I often have discussions about when we used smaller RVs. Our first was a 10foot chassis mounted camper. We took it everywhere plus it was on a 4X4 truck so there were basically no limits.
Next was a 23ft TT with a 4X4 pickup TV. Again we could go just about anywhere we wanted to.
Lots of boondocking with these two RVs.
Now it's a 38foot 5th wheel and the ability to stay inside in comfort and have all of the conveniences of home out weigh the ability to go anywhere that we used to have. We very rarely boondock. I like having full hook ups.
So now we tend to find a campground near where we want to play and then drive the tow vehicle loaded up with our toys over to the playground...play for a little while and then head back to the campground and the full comfort of our 38 footer.
I'm guessing my getting old may have played a roll in this transition.
