These are shots of the clutch that came out of my 996 when I had to pull the engine for an intermix issue. This clutch went in @ 76,133 and the engine was pulled @ 126,600ish, so the clutch has almost 50,500 miles on it.
The clutch in my Boxster went 142,xxx before it was dead. Clutch life is defintely related to where you live and how you drive the car.