Someone brought this up in a thread similar to this one:
Now imagine guys that there is a really cool game which awesome game play and story or whatever you like and next to the main character is Edward Cullen, and he's not just in that game. The majority of games on the shelf have sparkly vampires. You'd probably still buy and play the game but even time you look at your support character just are annoyed by it. It's fine at first but then your annoyance builds as it becomes more and more common.
Now imagine guys that there is a really cool game which awesome game play and story or whatever you like and next to the main character is Edward Cullen, and he's not just in that game. The majority of games on the shelf have sparkly vampires. You'd probably still buy and play the game but even time you look at your support character just are annoyed by it. It's fine at first but then your annoyance builds as it becomes more and more common.