Just sold last summer 2 lots that we had for over 20 years. Over that time period we saw many lots of "full timers" that used lot as home base. Within hour of medical and no income tax state. Neighbors right of us, he died and she wouldn't drive motorhome. She left it parked and picked up a trailer and lot in snow bird county and then she flew in between. Motorhome was her "home base".
We still have rv site in AZ that we use as "home base" for center of operations when we're south. Great to boondock but also great to come back to washers and drier and elec.
Only thing I don't like about "home base" set up is I bet I have about 2 of everything (tools, etc)
In my opinion most places that "full timers" hang out at, it really doesn't matter how new or old park is, there are good people everywhere it seems.