Let's face it, there are so many book tests out there, there's no reason to spend money on one that
you think has a severe shortcoming. The shortcoming on this one is that the book can't be examined.
Sure, no one's forcing you to let the spectators handle the book afterwards, but if you CAN get
booktests in which the method is completely invisible, allows you to accomplish the same effect and
get the same reactions, why would you knowingly choose this one?