So suddenly because dungeons are relevant you expect people to shell out hard earned gil on materia melded crafted gear? Sorry, but dungeon drops will do the job just fine all the way up to 50. I'd bet my bottom dollar you won't see a penny increase in that field at all.

Most folks I know who got the drops from dungeons kept them, and in fact having gone back thru on a diff class have started or completely collected other sets.

I for one could level any mage or tank class from 15-50 in dungeon drops alone.