Around here the course is given at a Community college, cost was do-able. I'm thinking about $175? The book comes included in the cost of the class/test/certification and is really not much of a text. It is a paper back that is just 5/8" thick and measures 8 1/2" x 11". You will want to keep the book as there are practice tests and some really fine photography in it!
The value of the class is the certification, not the book.