That's not the BlackHat audience that I've seen for many years now. It's basically RSA these days. I think that demographic exists at BH as a vocal minority. When you're actually on the floor, it's difficult to actually find anybody you're thinking of. Don't forget that attendance is over 8,000 lately, IIRC.
I'm not going to say the conference isn't vendor-y and commercial; it is definitely that, and more so than it started. But it's nothing resembling RSA. Also: Defcon is nothing like what it was in the 90's; it's had a trajectory reminiscent of Burning Man's.
