text: The final reason they should not be placed in classrooms is because of the price and upkeep. The machines would not be a cheap purchase and the schools have better items to buy for the school. The school my have to hire more people to make sure they are always working and this is also using more of the schools money. The device would be like any other piece of technology and would also require updates. The "Da Vinci Code" would not be totally accurate every time, and that could lead to a disruption. Nick D' Alto says, "Your home PC can't handle the complex algorithms used to decode Mona Lisa's smile." which shows how complicated the machine is and how easily it could misinterpret emotions.