I saw Alice Cooper at the North Dakota State Fair. First good concert they've had there in years. I felt betrayed though when a good fourth of the people there left after Ted Nugent. I mean, honestly... Cooper totally mopped the stage with Nugent's arse. Some people...

Anyway, I agree that DVD-9 is the way to go (although if the difference really is negligible, maybe making both available wouldn't hurt just to be fair)
With any other movie I wouldn't care but, this being Star Wars and all, it deserves the best presentation possible.