When I shot it (I think in '07), there was a vendor there with some Glock and Surefire items but that was it. The two I went to had more of the feel of a local match vs. a more national/regional match with lots of vendors and what not.
Last year it was just the glock armor. I spoke to Steve and he was not sure if anyone else other than glock will be there. I guess the glock guys bring the other vendors with them.