I think it really depends on your location and the condition of your machine. In my area of Southern Ontario Canada, featherweights are not quite as expensive as they were three or four years ago. I see many listed on Kijiji (Canadian version of Craig's List) in the $225-$350 range. Occasionally I still see them listed for $500 plus but then will see them re-listed and every time the asking price asked is lower. Singer made many Featherweights for many years and people have finally realized that they are not a rare machine and if you are patient, you will find one at an affordable price. I bought one of mine for $100 from a fellow quilter who just wanted it to be used. Of course if you are selling you should realize that a Featherweight sale will not make you rich and even if it was Grandma's machine it probably won't bring you mega dollars.