People like to look at the Moon because it is possible to go from one crater to the other with our telescopes. Stars moons or planets close to each other are also things we are interested in because they move slightly elative to each other.
The sun produces flares in a few minutes.

We were mezmerized by astronauts walking on the Moon, by the Earth moving below us, by the Earthset and Earthrize movies by Selene.

Oppy and Spirit have ben moving around Mars.

They all have one thing in common: they show dynamism, we see movement!! That's what people want! Something that moves, preferable when they look at it!!

Robots should offer that to the public: cameras showing themselves , showing robots digging trenches. We don't necessarily need humans as much as something that satisfies our own need for movement!