I love seeing these pictures showing all the dust and dirt sitting on top of the rover, knowing the years that it sat spotless in a cleanroom[1]. It's like unpacking a toy and actually getting to play with it.
True that. It's so visceral and so real that for a moment I worried about what would happen to all of those connectors and wires when it rained. Then, "oh. Mars. Right."
[1]http://upload.wikimedia.org/wikipedia/commons/0/01/Mars_%27C...