You never know where and when God is going to hit you.  I bought a commentary from an e-bay seller the other night.  In the vendor's confirmation e-mail to me, they invited me to check out their blog.  It was cool.  What they're doing is cool. 

http://sellyourpossessions.blogspot.com/

Buy something.  Buy everything.  But make sure that you really need it.  Make sure that the money you're spending on a book or whatever is not money that you could also send to World Vision, or any other of a myriad of good institutions dedicated to changing the lives of the marginalized both here in the US as well as around the world.

You may not need the book.  But those people could sure use the $10 or $20 that you would have spent on the book.