How old is it? I sold a Mac Tech series 50" for $1400 2 years ago. It was in great condition. What color is it? Size? Any included accessories? If it's in good condition I would try $1k and work up from there. Is it worth it? Hard to say without seeing pics. But Mac boxes are awesome boxes and every bit as good as Snap On or Matco. For some reason Mac boxes don't sell for as much as a equivalent SnapOn. Even though they are worth it IMHO.