With my novus out of the way, I finally have some money to put towards crafting materia to start working towards 2/3/4 star recipes. With 3.0 on the horizon, is it worth the cost of doing it now?

Main reason I ask is because I've been leveling desynth and have a lot of fieldcraft demateria stocked up. I'm debating if I should use that to make ilvl 70 jewelry or if I should sell it, stock up money to spend on crafting gear when 3.0 comes out?