Awhile back I did a thread about underutilized plot ideas that games squandered, and it got me thinking recently. What do you feel are some missed opportunities or ideas within the FF series? They can either be a subplot that didn't go anywhere or a game mechanic that you felt had more potential than what was seen in the game.

Before we start, try to keep game bashing to a minimum. I don't need to read snarky comments about how a whole game was a missed opportunity because you didn't like the game. Defend your answers, don't just spout off opinions with little context. Thank you and enjoy.