Well its not really that pointless. The original 2004 set has been out of print for a while now so this is a re-pressing. Probably new cover art, and as you said it might be likely that its in the new slimline cases that are becoming popular for sets. But I don't see this as milking anything really, unlike the 2005 version this is more or less just a re-pressing of the original release, probably for the holiday season since the original sets are getting hard to find. I don't get why they wouldn't package all six films together like this, or do a companion one for the PT, but I guess we should be thankful that there's not five different versions of the films sitting on store shelves.