Lucasfilm will officially tell you that SW screenings are on hold. There are exceptional circumstances in which they will provide a print like DGA screenings (where the 1997 SE was last screened i think), but these are exceptional. I don't think its about money. That's quite absurd, if it was about money then we'd have had the OOT all along, douple dipped every year. This is about pride and ideology. I guess Lucas figures if his colleagues have one or two special events in which they need a print, then the 1997 SE best represents the version of the films he wishes people to see. He can't show the 2011 version because it still can't officially be shown and he doesn't show the 2004 version because there are no actual prints that exist, only DVDs and HD masters for cable television. I think the only time the 2004 HD version was screened was at Celebration once, when it first came out. Maybe television companies have exclusive rights to it now, or maybe the screenings since have not been digital projection equipped or have a 35mm-only policy (a lot of repertoir/specialty theatres have such a policy). So it's a small compromise for exceptional circumstances.