A long, long time ago when I was a student with a job, I found that every month I had a little money left over. Instead of spending it all on booze and condoms I bought technical manuals, nitpicking guides, photo books, (auto)biographies of the main cast, calendars (the "Ships of the Line"-calendar, can't remember which year, was gorgeous!) - even the entire Star Wreck parody. mostly from Star Trek, but also others - Star Wars, Aliens and even Lost in Space... you name it. I have two 'complete' Star Trek encyclopedia - the newest just mentioned the newly started Voyager show.
Even though I wouldn't want to buy those books now anymore, I wonder... do new versions still come out every now and then?
_________________________
There is a theory which states that if ever anyone discovers exactly what the universe is for it will instantly disappear and be replaced by something even more inexplicable.
There is another theory which states that this has already happened.