I know I'll get flammed for this, but what happened to all those who said they would never do anything that would let someone profit from Caylee's death.
I thought most people said they wouldn't touch anything that benefitted CA and her family directly (ie: tv interview, magazine interview, biography of CA, etc.).

This doesn't fit the JA book. As far as I know, CA and/or family will not profit from JA's book.
I can only speak for myself. I said that I would not read anything or watch anything that benefitted Casey Anthony or her family in any way. As I said above, this book does not fit that category.
I would purchase a book about the case from the prosecution's side. I would NOT purchase a book (or should I say fairy tale?) written by the defense's side. I would
not purchase a book written by Casey Anthony or a book written about Casey Anthony (ie: her biography). I will not watch an interview with CA, or read a magazine interview with CA. Those would all directly put money into CA's pocket.
Jeff Ashton's book is going to be about the trial, the legwork they had to do, etc. It appears it will be more about the legal process and the trial itself than a book about Casey.
If Jeff Ashton wrote a CA biography rather than what happened behind the scenes, during the investigation, preparing for the case, during the trial, etc. ... then I will not read it. I know more than enough about CA. I would want to know more about what the prosecution went through to develop their case.
I don't think JA is profiting from Caylee's death. He's profiting from the experiences he had while putting this case together. Big difference, eh?