Well let's see:
1. A Pfaff 1475, my everyday machine, had for at least 15 plus years & haven't used 1/4 of the stiches
2. Pfaff 130 from mid 50's, built like a tank, repaired & made many a sail & awning on it, had since the mid 70's, great back-up machine if you can find someone strong to heft it to the table for you.
3. Berninia serger, still getting aquainted with a year later
4. Babylock serger, found at the bottom of a pile of boxes from my parents move from California in the late 80's, still need to check it out
5. A 1936 Featherweight, my pride & glory, traveling with me in the RV this summer