I lucked out with finding a Singer 201 at Goodwill for less than 20 bucks. All it needed was a good cleaning and some TLC. It's a wonderful machine.
I got in a fight one time with a really big guy, and he said, "I'm going to mop the floor with your face." I said, "You'll be sorry." He said, "Oh, yeah? Why?" I said, "Well, you won't be able to get into the corners very well."