What Gothix said.
I don't rp, I prefer PvP over PvE and yet I HATE when I can't customize my character. My favourite game by far are all the Souls games (meaning dark souls and co) and I have spent at least 30 hours in every single one (i have over 500 hours played on each of these games) only in the character customizator. Btw. the character in those games has his back pointed to the player, always, so I never got to witness my cool customizations, but simply having put in the effort I had a deep emotional connection to the character and through that to the game.
Of course we could argue the fact wether character customization should have the priority it has, but to discredit its priority at all is just false.