Overheard: Nature boy succumbs to Videophilia

The replacement of vigorous outdoor activities by sedentary, indoor videophilia has far-reaching consequences for physical and mental health, especially in children. Videophilia has been shown to be a cause of obesity, lack of socialization, attention disorders and poor academic performance. Oliver R. W. Pergams as quoted in Nature Giving Way to Virtual Reality

Lots of press about a study funded by The Nature Conservancy. The study looked at visits to national and state parks as well as numbers of hunting and fishing licenses. Their conclusion? Video games and the Internet are responsible for decreased numbers. I’m wondering: Did they factor in the price of gas or park admission fees?