The worst part was that there were references to cool things that he'd find in the tower once he got there, such as music that was enjoyed by people on a particular floor, and then
spoiler (but please do read this so that it robs you of any desire to read the series)
Stephen King had the last book end with a time loop going back to the first book like a coward.
I dragged myself through the last couple of books to find out what was in that stupid tower and was so incredibly disappointed...
(I will say, though, that, the city of people who used their psychic powers to destroy the Universe because someone was going to destroy it anyway so it might as well be them because the job paid really well was pretty apt, though!)
I don't know, I think it offer the incredibly valuable life lesson that the secret to being happy is to convince a publisher to give you a $200,000 advance to spend on "spiritual and personal exploration" so that you don't have to get a real job.