The value of students being able to see and touch what they are working with in the back of their classroom should really not be underestimated I think. Furthe

The value of students being able to see and touch what they are working with in the back of their classroom should really not be underestimated I think. Furthermore, a raspberry pi cluster allows the students the opportunity to work with pretty much every aspect of supercomputing. Those two aspects combined more than make up for the really trivial cost Pi's may cost over micro EC2 instances unless you are really interested in pinching pennies above other considerations.