Many video games these days are designed as Skinner Boxes (http://en.wikipedia.org/wiki/Skinner_box http://en.wikipedia.org/wiki/Skinner_box). Drugs have some o

Many video games these days are designed as Skinner Boxes (http://en.wikipedia.org/wiki/Skinner_box http://en.wikipedia.org/wiki/Skinner_box). Drugs have some of the same effects, but their addictive powers are often limited by adverse side effects (e.g. get too drunk, you vomit) and the build up of tolerance (e.g. a heroin addict continually needs bigger doses for the same effect). Since video games play directly on psychological reward centers, they can push a person much farther into a response/reward cycle than drugs can.