Two.
I have a 1954 Singer 301A (with the larger flip down table). Just got it recently, have not used it yet.
A new Laura Ashley Brother. It was on sale. I used it for the Weird Al concert blanket quilt, but outside of that I've just used it for sewing.
So far I've only hand quilted (outside of that Weird Al quilt, which was too thick to easily hand quilt). I might get one more machine (one to keep at work, two to keep at home), but will wait for the right one.