$600 is too high unless it has a few $100 bills attached to it. I have 4 and will continue to buy more when I find them for reasonable prices. They are worth $200-$300 in most areas but condition matters, of course. And the more attachments and extras the more people ask for them. I see them in antique shops where they ask $280-$450 but that's a little more than I've paid for them. I've paid from $280 (my 1st FW) down to $50 and all worked fine and had good stenciling, etc. Always ask to sew with it before you buy... I always take along a piece of fabric, a spool of thread and a machine needle.... just in case the seller doesn't happen to have anything.