I can whip one up if there is serious demand for it. It's entirely my fault -- it doesn't exist yet, so it wasn't in the finished package I delivered to Russ.
Mind you, I've had the same thought in the past regarding printing the color version on a greyscale printer or set to greyscale through Adobe Reader/Acrobat print options, but Ryan brings up a good point regarding file size -- the difference is pretty dramatic, honestly.