Good luck on finding just the right machine/machines for you. Yes, they are adictive!!! I first got a Featherweight, then a 99 with a bentood case, and then another Featherweight from the year I was born, all within 6 months. The older Singer machines were made to last, as well as a lot of other vintage sewing machines. Check Craigslist in your area and see what you can find there. It's nice to be able to try the machine out and see how it sounds and works first, if possible. Let us know what you get.
Janis