Well, I think it will be more than 7 copies.
Perhaps members of the band will buy it (and deny buying it), former roadies, associates, etc. Whether one wants to believe what is written in this book, unlike the Sandra book, this one was written by someone who actually knew the band, lived with them and traveled with them. She may have some axes to grind, but at least it's her own first hand account. I have heard the pictures in Carol Ann's book are of poor quality, but fans won't buy it solely for the pictures.