Lahar used to be able to trade scrolls for other scrolls ... can we have the same with the new mats system ... to let them trade for other types ... maybe a 2:1 ratio or better yet ... 1:1.
So people can buy the one pack that grants the most materials per minute of grinding, then trade them for all the other materials, rendering additional purchases unnecessary?
Doubtful.
Since they made all of the base items BtAoA Or BtC. The mats from a pack they don't have won't do them much good.