The best guess as to why I think this album was included is because it seems like an obvious turning point in the sound of their music. It sounds nothing like the previous ones I listened to. They are definitely heading more into the sounds that got them into the hippy market.
It's not that The Beatles are bad to listen to. They are enjoyable to listen to, but I can't get into their music. There is nothing I've listened to so far that I've remembered or felt like I needed to keep listening to. Maybe as their sound continues to change I will warm up to them more.
There are also supposedly two versions of this album. An U.K version, and a U.S version. I listened to the U.K. one since it was all I could find on Amazon, causing me to believe it is the more popular of the two. I could be wrong though. I had heard some songs on the U.S. version that were not on the U.K. one, so that could have been my missing link as far as understanding it's popularity.