It's a cool concept for a better science, technology, engineering and math curriculum. The only catch seems to be that robots aren't cheap: The Box will set a teacher back $3,500. As IEEE points out, you can buy the 'bots and a tablet off the shelf for about $2,000. The included lessons are obviously of value, but it would be up to a teacher to decide just how valuable. It launches this week at the Texas Computer Education Association conference.