The 2nd book, Whitetail Magic is a hardback and basically encompasses everything from the first book. As far as $ is concerned, I'm guessing that his cost are through the roof. Our last printing of the BBBC Record Book cost us over $50 each and it's a soft back. It wouldn't surprise me if the sale price is over $100/copy.
As for the content, there's not a lot in there that you don't already know, however, when Roger was writing it most of the info was cutting edge stuff. IMO, Roger Rothhaar has put more thought into how to get within bow range of trophy whitetail deer than anyone. Whitetail Magic is an excellent read!