http://psychcentral.com/blog/images/csaph12a07.pdf
The American Psychiatry Association (APA), different from the AMA, carefully evaluated evidence for video game addiction and decided not to include it in its latest manual, due to not enough research being performed on the issue. However, new studies are emerging suggesting >2hrs/day as an addiction, requiring attention. Therefore, it may be included as a disorder in the next edition of the APA manual.
I tend to agree. I've had Skyrim for 3 months, and I am pushing 67 hours. It has significantly affected my daily and social functioning. That is ~ 1 hr game-time per day. I find it difficult to believe that putting in more than 1 hr per day does not affect your daily functioning. However, I do find it easy to believe that lots of gamers put in >1hr/day and do not realize the effect gaming has on their other life endeavors.
Please let me know you opinion on this issue. Thank you very much.