I think if you had the Original Theatrical versions, just cleaned up like they did the new DVDs, with the lovely Dolby, etc. but didnt make any changes to the movie itself (scenes, music, lightsabers) that would be the pinnacle.
Anyone who hasnt seen that side-by-side its on digitalbits. I felt a bit of relief after reading the changes/comparison.
Admittedly, im buying the DVDs on tuesday, I cant rationalize to myself why I shouldnt. I think that even if everyone on this site didnt buy the DVDs they would still do incredibly. I just hope that one day GL wakes the **** up and releases the OTRs on DVD...until then Ill just close my eyes when Greedo shoots first.