In my mind his work was the best of the 1980s and that's a decade that produced some pretty powerful stuff like Ender's Game and Forge of God. Vinge coined the term "The Singularity" which is now almost a given to be a future event in some circles. His then wife also wrote some pretty good sci-fi such as The Outcasts of Heaven Belt I liked Vernor's A Fire Upon the Deep a lot but not his later books.