I agree with making all dungeon gear non convertible. I am 50 all crafts.. I do use a lot of materia, but I've only requested meld from a few people over the course of leveling 3 different toons to 50. It is a pain to find someone who won't charge a small fortune to push a button, so for me it was easier to level all the crafts and do it myself. I personally don't care to run any more dungeons than I have to. And I'm sure there are many other players like me who won't be using dungeon gear. I've met quite a few.