Space is limited, yet some of the older gear was kinda cool in its own way. (My favorite is the Igqira set for BLM.) However, keeping your favorite looking gear in your Mog Wardrobes / House / Inventory isn't feasible with the vast amount of items in the game and the tons of gear needed if you play many jobs. Consequently, gear gets thrown away all the time and much of the fashion in the game never sees the light of day.

What I'd like to see if a sort of "Style recorder". Basically once a piece of gear hits your inventory (or storage), the game records that you have access to that style piece. At that point, the gear can either go into storage or be sold/tossed. Then in the Equipment Sets window, you can mark a set as "style only" and have an option to pull from a special menu of all the gear the style recorder has captured.

This would bring a lot of gear back into play simply for looks, including some nice looking 99 to 115 Item Level gear that normally gets tossed. And with the gobbiedial chest always spitting out random pieces of gear, players would eventually have a long list of possible gear pieces to choose from with their locked styles.