Many MMO's are moving to a similar system of account-wide "Unlocks" for changing the appearance of your armor, and I feel that such would be hugely beneficial to FFXIV. It would remove the need for Character-specific Armoires, and it would even free up a *TON* of inventory-space from players, as we would no longer need to hold onto individual pieces of gear, which (likely) use far more data, anyways.

It's a Win-Win, really.