I wouldn't say that necessarily, because, (and I do only have the paperbacks for 1-5, so I might be wrong although the pages correspond exactly to their US hardcover counterparts) but Order of the Phoenix's text was much smaller with much less spacing than its predecessors, and that one was as long as all get out, so are you sure Half-Blood Prince didn't simply go back to the earlier styles of spacing? And even so, I really have no problem with it anyway. Hell, Barnes and Noble knocked off about ten dollars from the label price, so I'm not complaining!