Here's the way I see it. Halo fans, struggling to stay relevant, see their game as still thriving and popular. What they don't realize is that the complete opposite is happening, as the fanbase slowly dwindles away. What you get is the illusion that YOUR game, Halo in this case, is popular and still very active, when in reality it's not, and because of this false belief it shocks you guys when you see CoD sell so many copies.