Re: What is it that spins?
Every Good Boy Deserves Favor isn't really very good and isn't considered to be. I assume you've heard The Story In Your Eyes, and you should probably look up Emily's Song as well. It's one of their "classic" albums in the sense that it sounds like their classic era and they made one more terrific album after it, so it falls within the range of their major albums. Seventh Sojourn is the real deal though, hear that one.
They had some good material in the '80s but by that point it's optional.