I have one of the black, and at first it did seem to be a total fingerprint magnet - but after a couple of weeks, I don't really notice it at all. Kinda gross, but I think that the plastic has absorbed enough body oils to reach a kind of saturation point
My guess is that the black is bad initially, but I'm hoping it won't show dirt and grime as much later on. I had one of the blue KTs, and the quilted started showing dirt and grime after a while...