I thought this is pretty interesting

http://blogs.usatoday.com/ondeadline/2006/01/geezer_gamers_m.html

Thirty-five percent, or about one in three parents, say they play, too, and 80 percent of that segment play video games with their children, according to the new survey released Thursday.

The survey was commissioned by the Entertainment Software Association, a video game industry group.

The average "gamer parent" spends 19 hours a month playing video games, and spends roughly half that time playing alongside kids, the survey found.

Two-thirds of the gamer parents said they feel that playing video games has brought their families closer together.