I guess it's not so bad, really.
It just annoys people because they just keep putting out so many different versions of these movies. George Lucas is kind of taking advantage of the loyalty of the fans. These people are such completist geeks about it that they will buy anything new that comes out, even if it has some tiny little trivial nugget of something different that was not available to them before. It seems likely that they'll have this new 3D version at a premium price. Then a year from now there will be some Collector's Edition with a "new & improved" version of the 3D movie, also a premium price. Then, they'll put out the same thing again and call it the Deluxe Anniversary Edition, with some little collectible stickers or some crap...
It's like, how much can you milk from these poor suckers? I guess you can also look at it like these geeks could get a life and just stop buying this crap. But I think we all know that's not gonna happen.