I have a Singer 401A and we all refer to it as "the tank". It will sew awnings, car seat covers, mend tents, etc. It is 60 years old or thereabouts as I've been married that long and it has never been in hospital but once. Still going strong.
My fear of the industrial machines is that they sew so fast! I don't need 1500 stitches to fly beneath my presser foot.