^ I never have brought crafting materials with the new system. I generally have enough of virtually everything that I need at the moment. I wish I did those 20 hour crafting earlier than I did, as now I can do at least 3 schools doing those each day. Having 5 characters helps, as I generally will move samples from one to another, if I need something.
Also materials can now be picked from PvE missions, and if you have any of data samples - convert them.