Like I said in another thread, Lucas hasn't gotten around to giving the movies the royal treatment because he doesn't need to. The Blade Runner Partnership, on the other hand, can only really make money off the sales of the movie itself because (and this is even brought up on one of the featurettes) it's hard to even find any kind of memorabilia/collectibles from the film. The real irony is that all of the versions of the movie weren't released until now because of the legal holdup whereas Lucas has always been able to give the original versions the best possible treatment and simply hasn't.