Well they are giving the Mainstream public a cheap way out with the $20 sets. So I can't see why the Golden Collection versions cannot cost more collector's will pay it and that's who the golden collections are aimed at.
I agree, maybe they should keep the Premium editions down to 2 disks, but if the Golden Editions continue and they are aimed at collector's they should up the number of disks. A 8 or 10 disk set priced around the $100 mark would be great.