I too had a look at my cams, albeit at only aroud 70k km. Seemed to be no excessive wearing. I haven't really heard much from the guys over in the US about it either, although I haven't been in this scene for over a year now
Anyways MWR would be my place to go to as well to get a new cam, but you might wanna suss the problem out. Something else could be 'out' that's causing the excessive wear on your cams.
Btw are they stock cams/valvetrain?