Great post, as I too often wonder how this expensive tool became the rage. As stated in your post, these thing could’ve easily been accomplish with a wireless keyboard, mouse, and/or a tablet computer connected to a projector. However, the rush to put these in schools, in every classroom tells me the difference between someone looking to be cutting edge. Cutting edge is great, but questionable in schools who’s mission is more in line with best practices. For many of these schools, it becomes more about marketing than what works best. I see it as being about people first and meeting those needs first.