I am ready to scrap a Touch & Sew 639. I want the attachments and maybe the foot pedal, but the rest is history. The little gray spring that holds the bobbin in place is bad. A machine is no good without a bobbin. Too bad as this is the one that chainstitches. Not that I ever need to chainstitch. I may keep the case, too. It won't match any of my pretty black machines, but it will keep the dust off them.
I couldn't scrap an older treadle, but I did manage to find someone who wanted my one that was too much work for me.