Aside from the gamblers who happen to be betting on pool at the moment the guy making the most money is somebody like Old Has Been was in his gambling days. You ease around, you don't talk crap, you bet comparatively small, nothing flashy. I knew an old man that took good money out of a very small low dive bar year around in the early seventies. He did it with starting bets of three or five dollars and without ever dumping or showing any real speed. He was just always there and "chopping wood" as I called grinding. It was a twenty-four hour place and I sometimes thought ol' Joe lived there.
Odds are that there are some people out there making a good upper middle class living gambling at pool right now and we don't have a clue who they are.
Hu