If I find some IT books such as Visual Studio.NET 2008, C# 3.0, WPF, WCF, or SQL Server are excellent in Barnes and Nobles, do you think I will buy them soon? The answer is no.
I will go back to my apartment, open my notebook, go to Google main page and enter the name of the book title. I will see lots of websites provide free ebooks and I can download them easily. Why should I buy these expensive books? Google really provides the excellent search function of free ebooks.