I have a Singer which I've had for close on 30 years. With 3 daughters to clothe as well as myself it was used a lot. Then I went back to paid work and it only got used infrequently. Then along came grandchildren and the Singer was getting a lot of use again. I now use it when sewing clothing for abused &/or neglected children and just recently made some new trousers for myself. The old singer still works fine but think I'll put it in for a service as I'm having a small tension problem. Just needs tweaking. It has been a real work horse.
I don't use it for quilting.