I got my Singer from a sewing machine repair shop. It was funny -- I walked in to look and the place was filled with brand spanking new high-end machines, and I said, "I want a machine that goes forward and backward, zig-zag would be a plus." They went to the back and pulled out this machine from the 60's, in great shape, complete with the original instruction manual.
They reconditioned it themselves and have helped me for free the two times I had very minor issues with it. It's been absolutely fabulous (it does have decorative stitches too and an automatic buttonholer ) and weeeellll worth the $50 I spent on it! Ever since, I've always recommended that people look at their local repair shop.