I got mine on ebay a couple of years ago for $55 (with shipping). The person had put it in the wrong catagory and mispelled Yashica. It came in mint (possible unused) condition with case and owners manual.
I understand that on some of the latest builds the tooling was getting a little worn, so they gearing may not be as tight. So check the film advance carefully. The other thing to expect is that there will be fine specks of oil on the internal lens elements. This is expected. Some people disassemble and clean it themselves (make sure you have the right tools before you even think about it). I sent mine to Mark Hama in Altlanta, GA (
www.markhama.com). He worked in the factory building these things and is probably the best tech in the world for them. He charged me $75 for a CLA. Well worth it.
When you get yours, welcome to the club.
Steve