Now all these missions had to have their own power supply(and more). Why did NASA not send up a kind of energy hub that is fixed where multiple rovers can attach to and branch out from there?
The benefit would be that not all rovers need to bring their own power/solar panels but would just use a battery and could charge up at the hub. The drawback would of course be that they could all only explore a region around the hub. But since it seems that a lot of missions are at similar latitudes and I would assume similar latitudes bring similar possibilities to explore? Of course you would want one around the poles and one around the equator and maybe one in between.
Has this been considered? Is it not useful because each location is so very unique and a different question could only be answered by this location that was selected? Or is it technically too difficult to maintain such a hub or what drawbacks are there that this was not done already?