Vinyl Speculation

I started listening to some of my old vinyl again recently.  I'd just like to note right away that everything that I'm going to say is pretty much guessing and borderline hearsay.  The first time I listened to vinyl, I knew that it sounded good in it's own way, but I couldn't exactly say why or that it was any better than digital music.  It's possible my hearing has gotten better since I've last listened to vinyl, because I can tell there is a change when switching between mediums.  I know that digital music is available in a variety of different qualities, but that seems to improve in a different direction.  With a physical copy of music there are a lot of imperfections that just aren't there with digital copies, but this is easily ignored.  This lack of imperfections gives a sort of inflated quality improvement.  I want to say that the separation between instruments is more obvious with vinyl and this accounts for most of the quality difference that is hard if possible at all to actually define.  Once again, this is just something fun to think about.