The little boxes you can pickup which contain a small amount of Unobtanium and the ship scraps could be more interesting. A chance it contains a rare upgraded weapon or drone part would make them more fun to grab. Similarly, there could be buried loot boxes that you occasionally reveal when digging (this would be fun for Miner Survival mode). A smart player could build sensors into their drone to better locate these. In general, I think this would add to the "surprise discovery" feel of planets and add fun secondary objectives.