And I'm not dodging your assertion either, because games can also be passive. I've spent god knows how many hours watching Starcraft II games - well more than I'd like to admit. That's a game that was built with spectators in mind. I probably enjoy watching the game more than playing it, as wonderful as it is. Apparently so do other people, TwitchTV is evidence enough.
1 - http://vgsales.wikia.com/wiki/Video_game_industry