I met a few GH folks at DC23 this year...
I used several keyboards (and custom printed keycaps) as part of my crypto challenges this year.
Defcon is huge, and as you can expect from a huge conference you get the entire spectrum of folks, from those with excellent skills to scriptkiddies...but that is far from all it is. If you think otherwise, well, enjoy your world.
I enjoy DC because I get to hang out with people like Matt Blaze, Chris Eagle, Mudge, the original l0pht crew, etc... and the real con is the one behind the scenes...
I also get to see people work on my cryptographic puzzle challenges...and and humbled each year as some people come to DC just to do my challenges. (If you're curious, read the process some teams go through to solve, like here :
http://elegin.com/ )
BTW, I still have some of the keycaps that I was giving away at Defcon. I'll probably give out the rest here (with mini puzzles, like I did a few months ago in the pay it forward thread)-
Well, time to start getting ready for next year...