In career mode, empty rocketparts hexcan clusters have a negative cost. The cost of a full huge 7-can is zero, of an empty one - 59500. This means you gain money by launching them(and lose said money by recovering them). This makes for relatively easy gold farming, and I would highly appreciate a fix for this. Edit: The same applies to the monocan for rocketparts, but none of the other recources seem to have this problem.