Flyinhawaiian linked to the old DFW Gathering thread above.
Back in the day, there was a decent group of us who would get together monthly-ish. Over time, life intervened, some moved away, other stuff happened, and we just lost interest.
From my time participating in the DFW Gatherings, it seemed to be somewhat difficult to get people out of their 'hoods in the metroplex. Dallas people don't want to go west, Fort Worth people don't want to go east, Denton people don't want to go south, etc. It did happen, but not consistently.