Kotaku: Gamers feel very strongly about their content and its makers. They are also a business. An exceptionally large, very valuable business. The most recent ESA report [pdf] asserts that American consumers spend over $25 billion dollars annually on gaming.
So where is the wall where gamers ultimately rebel against adding to those billions? The upcoming release of Mass Effect 3, featuring controversial day one DLC, is proving to be a fertile ground for the argument.