I agree it's expensive, but it's really no different than ANY other 600 pg. book on the market (in any industry, mind you). Granted, you can get some on Amazon for cheaper due to discount, but I don't think it's that much.
Then again, after getting my first FW book, I realized how high the production quality was, how much time went into crafting every detail of them, and realized they were, in my mind, worth the $60.