I bought my first one a month or so ago for a big $20.00. The second one was $75.00 but I gave the guy an extra $20.00 to hold it for me! They both work great. The newer one (1975) actually buzzes a little more than the (1965) unit but welds fantastic.Anyway I plan on choosing one and taking best sheet metal from both and restoring one. Not sure if I'm going to keep a second around or not. They sure are cool old machines. I have a thing for the vintage tools! Just thought I'd share! If a guy spends enough time looking there's good deals out there! Now I need something to weld!