Mike, it looks like the car has SLK seats, or very nicely recovered base seats. Leather was never an option.
I know exactly what you mean about some people on this forum not driving their cars very much. It kills me every November when I choose to park my car for the winter months instead of driving it through the snow, sleet, and salt. I have to confess I really admire their self control. They must truly be "Masters of their own domain".
So I guess with over 50k miles in 6 summers, that means, "I'm out".