There's no reason that with proper money management, just by following Bucsfan in baseball, Ace-Ace in football, etc (not to take away from any of the other great handicappers on this site, as there are a tremendous number of them), there's no reason that one can't double their account every year. But you've got to play religiously and if this is the path you take, you have to throw out your own opinions on the games. It's by no means a guaranteed "easy money making scheme" but it should prove effective year in and year out.