Are books cheap now?

This (http://bit.ly/fRVNSL) is a list of business books for sale from
Zubal Books. It's probably US, so it would ship from the US. I would
guess that there might be a similar company for Europe. The books are
mainly English, it looks like to me.

It's not an easy site to navigate. I went to Business or Economics,
set it to list books from earliest to now. There was a 4th edition of
Adam Smith's Wealth of Nations. Carl Schurz's Honest Money and Work
(was a follow-up on Dishonest Money and Work?).

A lot of the books are $50 or less. It looks to me like people are
selling their books and prices are low, but it's not my area...

Brad