Good for you. I found a 503 a couple of months ago. Couldn't decide if I needed it or not. It was in the cabinet and needed a little cleaning. I went back and I am so happy I did. It had the wrong cams but I purchased them on Ebay for 8.00 the machine cost me 12.95, so I got a machine for a very cheap price. It had 3 tiny scratches on it but you can hardly see them. You will be so happy you went back...