Ouch. That's what i was afraid of. The way I've been collecting my MEF/Biotech/Exquisite Focus Crystals is from becoming allied with a faction that always offers wing Assassination Missions and then I just solo them. I can get five of one kind or another, the mission is fun and only takes about twenty minutes round trip, maybe a little less.
Yup, I've testing playing it DBOBE's way by only taking one-way missions as an itinerant drifter around the bubble and frankly it sucks.
One-way missions (data, transport, and passengers) are the least rewarding, both financially and materials-wise.
Because you don't stay anywhere long enough to be any more than cordial with anyone, the mission offerings are poor.
You more often than not don't have market info on your next destination because you haven't been there before.
So whatever we've supposedly missed by not playing that way frankly isn't worth it.