There are a few club level seats available, and a few more bleeders. They should sell out all of the tickets that they are not reserving for group sales, multigame packs and a few they are holding for game-day sales (not sure why they want to do that, but no skin off my back) tomorrow.
Everyone who has an appointment after tomorrow morning or so will be put on the season ticket waiting list. The only other NBA cities that have a waiting list for season tickets are LA, Boston and Phoenix.
Apparently, the size of the house is the only thing that keeps this franchise from being the number one team in attendance in the league this season. As it is, they will be an easy top ten. Obviously, they will need to have an improving product or risk the fans here turning fickle, but they are off to a great start.
Oh, and the average price is near the league average (far more than half of the teams are below thanks to high curve-setters like LA, New York, Miami and Dallas), and will probably put them in the top half of the league. So much for OKC not being able to pay "real" NBA dollars.