NLC pots nearly useless? Monster Crystal/Recipe/material farming?

mp potions are great to stock up on as a non-mage. 2500mp potion can be made super easily since the mats can be bought at the store. I'd keep two emergency stacks for if your familiar runs out of juice and you have no more familars to take its place. It will definitely last you through however long you were planning to grind (2x event for instance).