Hello! first time poster, long-time lurker. Last spring, I was fortunate to catch The Haunted Castle at the 3d Imax. As a professional 3d game artist, I was impressed by the sets, use of lighting and how well the actual 3d effect of the movie was conveyed...the story well ...I'll say nothing. Heh. Has anyone purchased this pack of IMAX films that came out? Is it worth the $75? And how good is the effect with the included 3d glasses (especially the scenes where the instruments are playing or the Hellish Rollercoaster)? Also how interesting and effective is "Encounter In The Third Dimension" and "Alien Adventure"? Any additional thoughts? Thanks in advance, mates.