I think in the long term, this will work out to be fine. The really motivated materia junkies will gather 1000 catas, 1000 materia for around 150 attempts at making the most ultimate 'Bas-relief Coblat Saw' ever crated. It will be worth 100-200mil gil and would be 'legendary'. IMO thats pretty sweet.

For everyone else, be happy you put two attack+ materia on your Crab Bow and go fight stuff.