To a certain extent though, it's the consumer's fault they are overpriced. Quite buying them. Publishers will eventually get the hint and lower prices.
Not to mention, stop reading something simply because Oprah and the NY Times tells you to read it. It's amazing how the internet can give you better access to little known stuff, but it seems to be having the opposite effect - people are only interested in the most popular stuff, be it books or movies or music, not to mention the total fixation on celebrities.