Yeah, S_Matt, as others have said, the mono mix of Star Wars wasn't just a folded down version of either of the other mixes. It was an entirely different mix altogether, featuring different takes of lines, different sound effects, and even different voice actors! And considering that a large amount of theatres were only equipped for mono back then, it's the standard for what a huge chunk of the fanbase was introduced to. But it has never been included on a home release, so just "getting it from VHS" isn't very good advice.