I picked up my 124G for $55 (on ebay) and its been fine. I did send it off the Mark Hama to be CLA'd (paid more for CLA than I did the camera). The lens on the Yashica is actually pretty good. I would look for one that looked like it did get used much (mine was mint without even scratches on the case).
I've see em priced as high as $150 or more. You got a pretty good deal if it as clean.