The number of professional video-game players is growing, but I don't think it out-straps the number of convicted felons who play. More pros than cons playing? Maybe but I would not bet on it.
You stole my answer. Why would you do that? Nevertheless, perhaps the question of pros vs cons is more about professional ninjas. I've heard, that Dance Dance Revolution + slicing watermelons with a Ferengi tooth-sharpener is quite effective as the cutting edge training exercise. Pun intended.
Vidio games make you fat and lazy, play 5 mins a day then go outside and get into the real world.
It's relaxing and entertaining.Keeps you out of trouble.