I have three machines. My Husqvarna 500 that I use daily. It doesn't do anything fancy, but then I don't want to do anything fancy. I have my mother's Singer in a cabinet that she got when she graduated high school in the early 1950's. I don't use it but it works and only does straight stitching. I also have my grandmother's (mom's mom) sewing machine. I think it is from the 1930's. The story I was told about it says that it wasn't electric and grandpa saved 10 silver dollars to have it made electric, then the guy wanted more and grandpa wouldn't pay it. I don't think it works but it has a family history.
Oh yeah, I also have a small child's singer I got when I was like 10. It makes a lot of noise and is just fun to keep. More family history.