Hi, there's some good quality oem rotors on the market at good prices, so its probably not worth having yours machined> I'm in same situation, mine have only done 23k miles and the rears are far more worn, pitted and groved than i would have expected. They should still be as new. In fact the fronts still are, I am going to buy a complete axle set of rotors and pads.
p.s. is that the King Crimson Album cover?