disagree
if you have an advantage there is no such thing as vig
in other words you are laying -110 or less on games in which the vigorish should be -120 or more (for example) on that line. the more +EV you take the more you make.
you are right in that few seem to be able to wager on a high volume of games and maintain an advantage. and if you dont have an advantage it becomes more and more apparent the higher the volume. but if you do it is magnified by volume, and volume also minimizes risk, if proper money management techniques are in place.