I've finished Jacqueline Carey's Kushiel's Mercy. It took me a total of 30 hours, tops, and that included sleep—sleep in which I dreamed of the world and the characters. I wasn't even reading it long enough to put it on my shelfari widget.
It was everything I hoped for, everything I wanted. My headlong rush through it was the perfect way to read it, to absorb the world without becoming absorbed by it. Toward the end, realizing the wonderful tale was drawing closed, I contemplated rereading it immediately, though slower, and decided not to. The story was wonderful, but I'm not sure if I'm ready to relive it. I won't be forgetting it, either.