I finished reading the rules for WHFB 8th edition, all 150 pages of 'em. I have no inclination to wade through what amounts to 3 white dwarf issues tacked on to the rules to make a 500+ page book. The white-dwarf-ish later half of the book should have been cut, and kept in the astronomically priced special edition ($150 for that thing), leaving the rules and background info in a much more affordable core book (I'd be ready to shell out $50 for that no problem).
I come back to my price/value comparison with WARMACHINE mkII. Would I buy the WM mkII Prime book for CAN$35? In a heartbeat! (And will before the month is out) Would I buy the 8th ed BRB at CAN$90? Never in a million years. I'll wait for the mini book to appear on ebay, thanks. The close to 3 to 1 fluff to rules ratio doesn't justify the price for me.
I'm clearly not the target market since I want most of the pagecount of the game books that I buy to be useful in the actual games that I play. To each his own, but sticker shock on the BRB is a "remains in play effect" until GW decides to bring down the price.
Oh and here is a pic illustrating very well the padding contained in the BRB. It's a size comparison between the standalone book and the rules-only book in the starter boxed set.