Quote Originally Posted by Xeon View Post
Not to mention that a quarter of the servers population would have to be given GM access to make all those exchanges, because believe me, if one could trade in a grasp VI or a cunning VI materia for a guile VI or command VI, the whole server would be waiting in line each day to do it!
So extend it to non-tradeable items only. Tradeable items such as materia, keep it so if you buy the wrong one, you sell it on the MB. But let's say you buy the lost allagan coat of healing instead of casting, make it so you can trade that back, as it can't be sold on the marketboard or traded with other players.