The thing that matters the most in our group is "Will the DM use or allow the material that is in this book?"
If the answer is "no" then WotC doesn't sell any copies to my group. We are all adults with families and we don't buy anything that we aren't going to use.
That gives me, as the DM, the ability to decide, in a small way, whether WotC will make any money off of my group of 10 fairly active players and 4 semi-regular players. I realize that 14 books will not make or break WotC, but if enough DM's make the same choice it could send the message that we're not interested in heading down this path with them.
Dragon magazine may have done a Monte Cook and the BoVD a grave disservice if the material presented in the magazine is not representative of the material in the BoVD because it's has cost them, potentially, 14 sales.