This is a nice thread in reminding us how much fine jazz was recorded in the 1980s. That said, I can't help but feel that the 1980s were, comparatively speaking, a down time, and not only for jazz, in what was an extraordinary century for American music. More precisely, it may have been more the like late 70s-late 80s. Yes, there were Michael Jackson and Prince but...
I find both the 1970s and 1990s to be stronger than the 1980s.