Every time we pick up a book, we expect to fall in love; but after a certain number of disappointments, our expectation turns to mere hope; and eventually we give up even that. But no true reader ever gives up entirely. We still want to be moved deeply; we are still looking for books that, as Orwell put it, will burst the thermometer.
You might draw some kind of parallel with blogs, too. Y'all come back now, y'heah?