I felt like I was getting good at discovering more of the planet as I learnt the system. Like others have said, it'd be nice to be able to salvage or to have some permanent upgrades. I once lost 7 pylons due to accidentally running out of power.
If you wanted to really expand the idea, you could have different modes of transport. The game might start with you on foot, then the next expedition you can afford a rover, then when your rover runs out of fuel you could walk a little bit (but not far). Kind of like how vehicles improve your ability to explore in Subnautica. I just like the idea of having a little grace after your rover dies to maybe get back, or find some fuel for your rover, that kind of thing. Or even just dying on foot feels more dramatic than your rover stopping suddenly (I guess it's implied in the current game that these are unmanned vehicles).
An upgrade to salvage things would be a nice upgrade.