Don't know original price. When I find my vintage beauties, I usually go on "what is it worth to me" and see if we can arrange something close to that. Seeing a couple of options across the country for under $75 for a pristine condition frame, which is probably cheaper than a couple of 2x4s and some hardware these days.
I know that there isn't a huge market for wood frames any more -- of course if that is type of quilting you do and you have the space -- go for it! Otherwise last 20 or so years have been about ways to figure out how to machine quilt.