I'm not sure who you bat for- Apple or the Evil Empire, but if you happen to have iPhoto there is a little "book" button on the bottom tool bar.
It's been there for a couple of generations of this software, I've never paid attention. But recently a client showed me a one-off book he made of images I had done for his winery.
The paper, the colour/density accuracy, the binding quality- all blew me away. In no way did it look less than a commercial production. I think he'd even clicked 'auto' button on the layout and the template had worked really well. The built in design interface was soo easy. I'm waiting for delivery of my first effort at the moment.
It differs in that your creation is not available for others to buy, as with Blurb, but it was very good quality.. I've bought several Blurbs too, and like others here, found them 4/5- pretty good for the price.