I realize it may be may or may not be barely old enough to be vintage, but is anyone familiar with a Kenmore 385.1464180? A plastic body, but it has to be metal inside. I couldn't lift it at the Salvation Army. There was some color on the panel for the stitches, but it's not a computerized machine. Late 70s maybe??? Is it worth picking up? I shy away from Kenmore because of the tension problems of my early 60s model, but maybe this one is different.