Those are good machines. Don't let the nay sayers slow you down. Yes, it does have value. Cams are sold on Ebay, but beware of less than experienced sellers. Be sure they gurantee they will fit your machine. Don't hesitate to ask questions. You probably won't need them, but in case you do, go for it. A good cleaning is recommended. That is part of our obligation to our faithful sewing machines. We're all they have. You will havemany happy hours. By the way, I have a couple of machines that are worth less than the going rate for cleaning now. Unfortunate buy true for a lot of older machines 50 and newer. We are all waiting for the market to come back, but it probably won't. In the meantime we can just sew, sew, sew.