Well I purchased and read "Pumping Away", very well written book. While reading, I had several "duh, why didn't I think of that" moments!
My only gripe is the price of these books! It seems like any literature of this genre is $$$$
You aren't buying romance novels here. Technical manuals are pricey. They are not sold in high volumes and are expensive to produce.
And most of it really never goes out of date, so it sets on someone's shelf as a reference book.
For the years of experience you are getting for less than $30.00, it is a really good bargin.
I've spent $1000's on college, textbooks, code books, review manuls, etc. Knowledge is expensive. You can either pay for knowledge up front or learn the hard way and pay for it in the end.