in 2.1. systems in boom sell their goods much cheaper, and buy high value/luxury goods for more CR.
so, for exampel, exporting performance enhancers from a high stech system in boom to an extraction system in boom, bringing back palladium, can net you 3k+ credits - that's double the profit which was possible before 2.1.
with the effect on sell prices on medicines in systems effected by war/civil war or outbreak, or on food in systems with minor factions in famine, you can make massive profits selling "low value goods" like basic medicines from boom systems - up to 3k profit for a single export.