That REALLY slowed down my plans to get to the dark areas called The Pipe Stem and Bowl and The Snake - way to kick an OCD response of "but all the money I would make from the detailed surface scans....."
I did stop and scan it, though not all the plain moons, just the interesting ones and all the major bodies. Came in somewhere around 70K I think, once I got back. And yes, I had to abandon detail surface scanning and decide just to go and get back! That was a challenge in itself though, to NOT scan everything.