Well, that's what they call themselves! (Ourselves, now.)
The Greenville Mafia was in past years a prime mover in the start-up of the Boardgames Players Association (BPA) twelve years ago, and indeed the incorporation was performed by one of our members, Scott Pfeiffer, a local attorney. The BPA is an international organization that draws 1400 - 1500 participants to its week-long championships held annually in Lancaster. PA. See http://www.boardgamers.org/ .
This gives me the weekly opportunity to play board games with some of the best players in the world. We have our own meeting house, and there are three plaques on a wall just listing the names and years of members who won 1st place honors at the BPA championships in individual events - dozens, in fact. With normal attendance at our sessions of 12 - 14, there are usually at least three different games in play at any given time. And these aren't Monopoly or Scrabble - these are euro games like Dominion and San Juan, war games like The Kaiser's Pirates and Napoleonic Wars, railroading games like Ticket to Ride and Empire Builder, and many others.
I may not ever attain the level of play of other Mafioso, but at least, after a hiatus of decades, I'm playing games again on a regular basis!