The best $20 I ever spent was at a barn sale. I purchased a 1956 Singer 99-K in its original leather case in perfect condition. The owner had taken great care of it. It sews like a dream. While I was talking to her about the machine my hubby found a large batch of 100% wool ( he’s always checking for wool for me) he had a large arm load- probably $300 worth of wool. She said- oh you can have it, for buying the machine. My husband gave her $50 and told her she couldn’t make any money that way- she replied, “ I’m not worried about making money I’m worried about this stuff going away”
after her sale ended she brought me over another large tote of wool ( about 25 yards worth and a box of notions she came across for the machine. I know it was her- though she just put the stuff inside our garage door.