I don't want to quote the entire wall of text, albeit I love the post and agree with it wholeheartedly. You're absolutely right, and the thing is, this phenomenon isn't localized only within the gaming industry; the best example of it is, of course, the movie industry. We still get the same old summer blockbuster shit, but that doesn't mean the great movies have stopped coming. Movies that basically all of us, regardless of which genre we feel most at home with, can agree are pretty damn awesome. The same goes for music, to some extent.
But, yeah. Some people would like to only have their own special brand of coffee, and somehow they get insulted if there's anything else.