enticing packaging that piques consumer interest but guarantees some level of satisfaction will please children and fail to anger parents who woukd have had to make unreliable purchases not guaranteeing the happiness of their child if the item was not the desired one. The mystery box will maintain the possibility to recieve a rare. The packaging will directly factor this in as a sqare will be covering the plastic sheet material where the figure would be placed. The mystery and hope of receiving the desired one is (in my own experience) thrilling. And when you do not get the desired collectable, the course of action is to purchase another, optimising sales.