A local paper has a little story on the increasing popularity of games in the US home, including chess. This is apparently based on the increase in sales of fancy game tables. The given causes include everything from 9-11 to an aging population choosing more sedentary leisure activities.
I spent a lot of time with dozens of board games with my sister and friend when I was a kid. Even when computers and video games started taking over when I was around 12 the game closet was visited regularly to pull out things like Stratego or Monopoly. We also played card games all the time. I won't criticize video games because not all of them are mindless, and few of the board games I remember required much in the way of thinking. (Lots of spinners and rolling dice.)
They say that Americans are going out less after 9-11 and so are spending more time at home with the kids. When is the last time you and/or your family spend an evening at home playing a game together? What was it? Most people learn chess from a family member, do you play with your family?