I probably have had my Featherweight longer that almost any one here. (Notice I said "almost", so not claiming to be the longest.)
I got my Featherweight on Mother's Day in 1973, which was my college graduation. My mother got it for me, and I did sew a few things on it over the years, but no quilting. Then I needed to have one of the fancy schmancy machines that are now available so it sits on the shelf, looking forlorn and unloved. I'll keep it forever though for sentimental reasons if nothing else. (I also have my mother's 301 which she bought new.)