Yes, armors are definetly less configurable, but some things still could be.
Like if you got a Chainmail: how long should it be, should it go over your arms, maybe have some leather over it or a Tabard with a fixed color or the color of your Faction/Clan, how long could the Tabard be, could it have striped ends or full ones, maybe some lammelar on your belly, maybe chest or shoulders, or maybe just small plate squares or leather plates.
Just an example, but i can understand that it would be difficult to accomplish.