He's not done, there is another Dark Tower book coming out end of April.
Books 4, 5, and 6 are some of the best literature I have read by any author. Don't delay At least read Book 4. If you are as transported by books as I am, you will be rocked by the level of emotional involvement you find yourself in.
Well at least there will be 3 to read instead of one by one. That was torture with Potter. I love to read and if I am reading something really good, I can't stop until I am done.
I think a trip to the library is in order. I could have DH find them for the Kindle if possible, but I really do like reading actual books. that is probably why they are the one thing I ask for every Christmas.