On my "lifestyle" 1st visit I was not at all interested in buying.
I used it as a home base to travel to Disney, Space Center, Clearwater.
On the last day out of boredom of travel, we stayed in TV and toured.
We hardly used any 'Villages Dollars', we did not golf, we did not swim.
But we saw enough to make us come back for a 2nd visit & on the 2nd visit 'sales' treated us well enough to make us want to buy. We bought a FSBO so 'sales' didn't benifit directly but I am sure I help the local economy. Sales did treat us very well in getting t-times on our 2nd visit. Probably better than even a priority member but if that's what it takes to sell a property - so be it.
Given the 'turnover' here there will always be a need for sales. There will always be a need for the entertainment at the squares and always a need for special events. Just like any other town such as Mt Dora or Leesburg or Ocala with their various themed events, so will TV need such things.
I don't see a decline at 'build-out' but just the beginning of many great traditions.