You know that thing that happens when you encounter a book that's formative within a genre and that is the (very young) grandfather of an era and then you read it and, well, it's just a book?
Well, if you do, that was my experience with Neuromancer. It's not that it was a bad book or even a badly thought-out story. It's just that I was expecting something great and I got something, well, average.
In the book's defense, I was reading it under less than ideal circumstances (i.e. - duress) and reading it with an eye for bringing literary criticism to bear on it.
Still, I wanted more out of this book than "So that's where cyberspace came from".
tl;dr - Read "Snow Crash" by Neal Stephenson instead.