Joe you did answer your own question. Keep those, get rid of the rest and get some more machines to work on - you will know it when you get it. I keep a clone for messing with - then some time along the way, I sell it. I keep a Singer 403 and my Singer 401g, an Elna and now I have a Phoenix. I also keep a clone for my DGD because it is from the lady she was named for. The rest are for sale - I seriously need to get some gone.