What Stephen King have you read. As someone whos read over half of his works I could tell you if you've read good or bad works of his. Also, Stephen King writes for telling stories not great literature. He knows he isn't an amazing author he just loves telling stories. No one can tell a story like Stephen King. There is a reason he's a huge as he is for as long as he has been. The characters he develops, the ideas he has and his uncanny ability to pace a story. He's no Faulkner, Steinbeck or even Asimov but he's is the best at what he does and that is pop fiction. Hell, many people thinks he writes only horror but has written a variety of things. You'd be surprised the amount of people who are plain shocked that he wrote 'Stand By Me' and 'The Shawshank Redemption'. Any one who loves fantasy (I don't really) would love The Dark Tower. If you enjoyed the journey to Mordor in Lord of the Rings then you would love the journey to The Dark Tower; it's a journey through time, space, parallel dimensions and minds. I'd say it's about the most original thing ever written. There is also now a Marvel - Dark Tower graphic novel out now but I've yet to read it.
Sorry, trying to get as many people to read The Dark Tower as possible. I've gotten three people to read it and have loved it and they've convinced more people to read it. Fanbases on the internet label people who read the series 'Tower Junkie' because just about anyone who reads them once will read them twice.