Good point. So if it was sold separately, it would be in generic jewel or amray case, etc. instead of the accordion style custom packaging.
It's worth repeating, since there are different extras on the BD-set (the only thing that sounds the same are the audio commentaries), it appears that LFL & co. presume that the majority of the buyers of this set already own the 2004 set. And I can imagine Lucas thinking "why would they want the original cuts? They have the 2006/2008 sets, right?" ;p