Unless it really took off in the last month or so, the last one like mine I checked went for about $250, looked way cleaner than mine.
You guys with the whistling radios, I think that may be your IF coils are out of tune. Not to set everyone diddling around, but if you can find a schematic, you can track it down and maybe stop the heterodyne whine.
Another good site for old radios, if not mentioned already, is
www.antiqueradios.com
I remember KAAY from Littlerock AR. Good rock n roll late nite, but I had to sneak out and listen to it in the car, couldn't get it on my portable and didn't know about adding antenna wires to those cheapie sets.
-Ed