If Tron: Legacy on blu-ray is anywhere near as amazing sounding as it is in IMAX it'll be the new standard "impress 'em" disc.

Your subwoofer will get a serious workout though out the film.

IMAX presentations are always better than the standard theatre, but sometimes a movie comes out that really SHOULD be seen in IMAX. This new Tron movie qualifies. Amazing film, no, but it's all about the visual and audio...and that's where IMAX shines.