My old one was my mother's. It was a great sewing machine and I had it since my mother passed away. I used it for quite a lot of projects including a few quilts, blankets, dresses for my daughter and even an occasional hem mending :)
About a year ago, a plastic strip that was responsible for changing the machine between the different stitches, broke. I took it to a technician that said that he has no spare parts for this type of strip so he improvised. Since you can setup a zigzag stitch to have no width at all, which means that it's basically a straight line stitch, he got the machine to the position of the zigzag stitch and secured it in place. This means that I could only use the straight line and the zigzag stitches instead of the 25 different stitches on the machine. I didn't mind much because these are truly the most important and frequently used stitches, and from a sentimental point of view I was also happy to keep working on my mother's machine.