Should I spend my Myths?

Seeing as how the patch is rolling along and wiping the myths.. should I spend the 2000 that I have right now or would it be better to convert them later on? Seeing as how conversion rates are low, I'm not entirely sure what would benefit me right now.

They're going to go the way Philos. 1/4 exchange for Sol. Better off buying mats for gil profit.

Since they are removing myth gear from venders, I've been spending it on gear just to make sure all my classes will be at least high 80s-90 when they reach 50. Still have MNK and DRG to level up to 50.