There are hordes of 24x7 gamers not all of em are messed up
The numbers spike during vacation
Many serious gamers take a break from work just when a major game is released (eg skyrim) then play more or less continuously during that break, then get back to work and play casually from then on (at endgame)
You never know why anyone games excessively, saw one guy dashing through the leaderboards in a matter of days, thought it was a hacker turned out to be some dude in a wheelchair
You have to decide how much to game and why, dont compete with those who choose to invest more time
And this study says gaming is the eye excercise *www.bit-tech.net/news/gaming/2009/03/30/studies-show-fps-games-improves-vision/1