I'm married to a pool player. He hasn't played a lot in the last few months, but he loves the game and was active with a league for a while. Once they made it to regionals (in Bakersfield of all places) but, unfortunately, no further.
I think the mathematical aspects of the game appeal to him, he's very adept at all that math stuff. Me, I liked geometry but was miserable at algebra and got no further than the basic stuff in both. I had to take algebra 1 twice. I got one of the lowest scores in the college math placement - I remember my counselor saying that. I wonder why she felt it was necessary, I already knew I was going to have to take something remedial to get my general ed credits in math. Fortunately there was a great class that covered the requirement created especially for non-math students. We even got to go to the Huntington Library on a field trip.
Anyway, here's an amazing little clip (first seen at Suburban Guerrilla)of a pool playing prodigy.