I'm certain the only reason the CoD games sell so much is that the extreme fans buy about a dozen copies each because they want to play it so much. Yep....logical.
Personally, I don't like either series, since FPS games have rather died in the last five years. I'll gladly pay full game price for GTA San Andreas again that even get a Call of Duty game or a Battlefield game for less than half price. At least it took thirty hours just for the main missions. And I loooove exploring massive open world areas. Running along corridors gets boring. Very quickly.
Personally, I don't like either series, since FPS games have rather died in the last five years. I'll gladly pay full game price for GTA San Andreas again that even get a Call of Duty game or a Battlefield game for less than half price. At least it took thirty hours just for the main missions. And I loooove exploring massive open world areas. Running along corridors gets boring. Very quickly.