When I think of "exclusive" clubs, I think of those where access is very limited with very few rounds per year, or not many people even know the club is there. Pine Valley doesn't fit that mold for me, as witnessed by the fact that they often utilize a two tee start to accommodate the amount of play that they have.
In Orlando, some may think that Isleworth is exclusive, but those that live in the area will tell you that Orange Tree (a couple miles from Isleworth, and practically across the street from Bay Hill) is the toughest to get on. Most people don't even know it's there.
From what I've learned in the past, the Golf Club of Purchase (NY) fits the bill. I was speaking once to the head pro, and he said they had approximately 1500 rounds per year, and he played over 10% of those accompanying guests (he said he played 8-10 rounds a week in the summer). If I recall correctly, the Dunes Club in Michigan does around 3000 or so. How about Cherokee Plantation down in South Carolina? That would probably qualify, although I don't know how many rounds they host.
The limited access benchmark for me is approximately 6000-7000 rounds (here in Columbus, The Golf Club and Double Eagle are close to that range). Most typical private clubs in seasonal areas (midwest/northeast) may host 18,000-30,000. A busy place in a year-round climate may have over 50,000 rounds. 12,000 rounds in Florida is very limited.
Naturally, there is no hard and fast rule, nor are these actual statistics. Just my experience.
Regards,
Doug