Hi Tom,
I bought my machine at Sears and it is a Kenmore. I got it probably 10 years ago and have purchased several different presser feet, the 1/4" foot, a walking foot, and an embroidery foot (which I use for meandering).
I have been very pleased with the service this machine has given me and I believe I paid approximately $129 for it back then.
Good luck, and happy quilting to your wife. :)