I have 5 total. 3 are Featherweights and all 3 are in working order. I have one old singer that uses cams. It was given to me by my Mother. She used it to make our jammies when we were kids. It doesn't work, but I hope to have it serviced and working some day. Then I have my new computerized machine. I use it the most, but I also use the featherweights.