Bear in mind a Contax is little more than a Yashica with a more expensive set of clothes!

They have not been made for quite a while now and the accessories that are available are damn expensive, lenses especially. The 25mm wide angle retails for nearly twice the price of a Nikon manual focus 24mm. Yes they bear the Contax name and they are seemingly well made, but having said that I don't think they are actually worth what they sell for.