Asa points to the recent article about Spirit discovering more evidence of past Martian water. I could pull a life-lesson out of the discovery, one of those when life gives you lemons... types of lessons. The reason that the water evidence was found is because one of Spirit's wheels is busted now, and dragging it along the ground exposes deeper soil types. How about that!
And Opportunity is still running around, too. Phoenix launches in about 3 months. I didn't work on it, but the engineers and scientists reached frenetic pace on it a few months back. ATLO is still going on.