There are a few of us here, although some of the big players have moved away in recent years. We started an informal DC Domainers group a couple of years ago - at this point, we just send an email around 1-2x a year and meetup for drinks.
I'm always happy to meetup and talk domains (my favorite subject!). I wasn't able to go to the most recent meetup due to scheduling. Drop me a PM or a line on Twitter and I'll try to keep you in the loop.