...the mission would be a lot simpler than a human-based one. It will also be quite cheaper than the real thing. First, you don't have to care about life support systems, which will make spacecraft manufacturing a lot less complex. The whole system would also weight a lot less, reducing the need for the development of a huge rocket, and again reducing the costs.
...Now imagine these NASA C-3POs roaming our satellite, controlled by all kind of scientists using telepresence suits down here, all looking for interesting things using high definition visors, and able to move just like they would move on planet Earth.
Even better would be if they could allow non-scientists a chance to walk on the moon as well.