I've not yet completed DKS, although I think Im near the final, and have to say that I agree with your comments.
I too can play a game and slowly get bored (often too quickly), and although I've not put in as many hours as you have, I have not felt bored at all playing. I actually 'want' to play.
I didnt know much, if anything at all really about this game, I bought it on a whim from Steam, and I am really glad I did. I almost dont want it to end
