If there is one constant about all private games, it is the constant of ego massaging and circle jerking of how good their private pool of players are as compared to "everyone else".
I mean, have you ever heard someone from a private game say, "Man, we all suck"
. Nope, it is always, "Man, we are all awesome:
Now, I'm sure there are some private games out there in which the players are good. But on the whole, 98% of them are fish farms.
Typically, what happens is that the private pool just falls into a stagnant type of play since there is no cross pollination or influx of fresh blood. So they all end up more or less either playing the same or falling into established niches and types of play.
In the interest of disclosure, I've played in about 7 private games, and each of them were fish farms with 1 or 2 decent thinking +EV players. In each case, the +EV players guarded that game like a mother bear guarding cubs. If you were a fish, they welcome you to the game. If you are a +EV player, they ensure you aren't invited back
.
Just sayin...