I'm genuinely asking because I'm certain there is a limit before customization options become a bit much. I don't have an opinion other than when the customization options get in the way of gameplay. The best example of this is MW2's multiplayer, you could choose your killstreak, your deathstreak, your perks, how you want to be seeing your target before he dies, and what you want out of a woman. It sounds great, but unfortunately some of those options broke the game and made it very unfun to play.