Originally, when Starbound was released, Ores were an absolute pain in the ass to try and find, sure enough there were a millions and billions planet but that didn't entirely mean we wanted to visit each and every one of them for the soul purpose of trying to find some Platinum. I think what the main problem is, the devs seems to go from one extreme to the other, never being able to find the balance between the two points. Copper, as useless as it is -- Is everywhere -- No matter what threat level planet you go to where-as Iron, you'll never find it in Threat Level 4+