Yay! Gaming Philosophy has returned!
I'll make a gross generalization here. There are two major "threads" for the lack of a better term, in games. Digital Sport and Interactive movie. Games like Pong, CounterStrike, and Wii Sports are digital sports. They are primarily concerned with the mechanics of play and competition. Interactive Movies are Zork, Shadow of the Colossus and Zelda. They are primarily concerned with the immersive experience and story.
Both schools are valid and cross over each over repeatedly. But they each appeal to a different human need.