Well, considering that certain playable races have unique traits such as horns and tails...there's a lot of potential for some interesting race locked gear that takes advantage of that. It sure would be nice to have some glamour that allows my character's tail to breathe and not just clip awkwardly through the metal/fabric. It's also not at all unusual for other fantasy games - both single and multi-player - to take advantage of the differences between playable races and embrace glamour options that are locked to the player's chosen race.