We did warn you. You just didn't heed the warning.
Just don't go to an auction. If you limit yourself to one at a time, you might not end up with a house full or in my case, 14 sewing machines in the garage + more in the storeroom.
Posted 12-08-16 when you asked about a machine of shopgoodwill.com.
"I, too, got quickly enamored with old sewing machines. I, too, got in over my head. I didn't spend that much money, so that's not an issue. What is an issue is that I have about 15 sewing machines (some with cabinets) that I either have to fix, sell or trash. I love the old machines, but I don't know how to fix them. I don't love them enough to spend the time to learn how to fix them. Right now, they are taking up space in my store room and my garage. I just got carried away after I bought my first Japanese machine for $15.00."
bkay