I was chugging along reading EU novels pretty consistently up until the New Jedi Order series. I don't know that I ever put a finger on why I didn't get into it until I just read this list...
They have a nine book series that is directly related to one another (not just thematically) coming out over the course of two years' time written by four different authors. There is no possible way to maintain consistency. It would be like Timothy Zahn writing "Heir to the Empire" and then bringing in Kevin Anderson to write "Dark Force Rising" and then some other hack to write "The Last Command."
The EU never would have gotten off the ground at all if this was the sort of stuff they pulled back then.








