Surely the problem with Biochem IS the reusables. Once everyone has bought a reusable medkit, they will never need another. They'll just put it back up for auction and buy the next level up. I chose Biochem and am thinking of switching: My Commando can't find a decent weapon anywhere. Edit: Apparently they require Biochem to use, Guess I should read the description more closely next time. As it stands, I'm using my kolto bomb and med-probes on myself more than the purple medpacks I've made. The sheer number of medpacs I loot makes it almost pointless to keep a reusable one, or sell blue-advanced ones on the market.