I read the last Harry Potter, which I'm not going to go on about because I've already complained about HP at length here. It was workmanlike enough, tied up a few loose ends, and didn't need an editor as much as the previous two books had. 
The most interesting thing, though, was that Southwark libraries had loads of copies available on the day of publication - when the fifth book was published, the libraries in Newham where I lived at the time were booked up weeks in advance with requests for copies. Is this because competitive discounting means that people don't need to bother with the libraries any more because a new copy of the book to own will only cost a fiver? Or do people assume that the book is so popular that it won't be available in the library?