well they can make drops from these types materia better then any others, that way they are put on the good/best gears that keep changing. granted if gear keeps raising so do stats/newer materias but it would be easy to work with since they aren't new gears they need to add to them or anything. it's as simple as a +8stat changing it's way to +20 depending on what level the gear you put it on is as it changes. i dunno just a thought. it's not like they can't think of something to fit it in.
