I was in a much better stance when I was in my teens; smoking hashish and all that jazz of being young.
I guess all my copies (versions) they are simply no good, and it's ok now with me because I listen to other stuff anyway.
Upgrading the old stuff is not always worthy when you're into the newer stuff and other music styles.
For example; The Beatles, Paul McCartney, John Lennon, ... I rarely listen to my albums and CDs now.
I love(d) Cat Stevens music, and if some people are into the latest and best remasterings from the original pressings (tapes, acetates) the more power to them if they are still listening to it.
Life's just too short to live in the past.
* I'm just talking, in an audio forum, about music. ...Today, right now.