Hmmmm....and in the mean time, Pro's are dropping out like flys getting sprayed with raid....because they can't make shit for a living unless they're in the top 4 in this country.....not to exciting for the new players if you ask me.
So new players should only be interested and excited about pool if there is a whole bunch of money to be made? Can't it just be because it's fun to play pool? Just as a hobby, as a fun passtime, whatever?
Also: if there's more people loving the game, more people will come to tournaments to watch - that generates money and is interesting for sponsors because now they can reach more people at these events. I realize we wouldn't get great big masses of people to attend, it would never be nearly enough for pool to be considered a 'big viewer sport' or anything - but still. For anything to happen, we need more interested people there.
To answer OP's original question: I think one neglected aspect in amateur pool that hasn't been mentioned yet, is "don't think you're done learning the game once you're consistently winning games against that one buddy or once you think you've seen and made every possible angle on the table".
I've seen that many times: someone gets his own cue and starts playing a lot, and within 6 months or so they made balls in every angle possible, because there aren't that many. They are now King of Pool, must be some talent to be able to do that afte such a short period of time!
The line of reasoning now becomes: "I can make every ball, because I've done it before" and they don't expect to ever miss again. When they do, they soon learn to blame some external aspect: the table is off, the balls... something with the balls, the chalk too and someone was walking in my line of sight.
Guess what I'm saying is: you're never done learning in this game, so be as precise as you can. Always mind all the little details. And know that you and you alone are responsible for failure, as well as success.