I think the problem is that you used to get a full game. Then, after the game was done and out, through mods, Devs, and feedback, more content was brought out and available to purchase/play. As consumers, we have been letting the publishers push more towards putting out the bare minimum of a game, and then charging more money to get the "complete" version of the game. Two totally different ideas of what DLC is/should be. The video above generates ideas on why Activision made more money by doing it this way, and poses the question on whether or not you, as a gamer, are cool with letting it happen. The "that's just the way it is" mindset will allow the practice to continue/worsen.