Just look at people living in the Arctic: everything is imported, basic necessities are expensive, and getting replacements could take weeks. Now imagine that

Just look at people living in the Arctic: everything is imported, basic necessities are expensive, and getting replacements could take weeks. Now imagine that you're on a different planet, and there are only a few firms that CAN resupply, and they'll only do it if you can compensate them sufficiently. Better hope the colony is built on a platinum and rhodium mine!