I had the chance to pick up the sought after BEATLES Mono box today BUT took a pass. I know there are some differences BUT paying that much money (Mostly for packaging) is kind of a waste. I really don't like listening to mono versions of any performer that I am interested in...I always skip past them. STEREO is like adding color to a black and white picture. I did pick up A HARD DAY'S NIGHT remaster BUT am still finding it hard to hear that much difference in the new remasters. They sound great BUT they always sounded great.