Not for 200 undergrads learning how to bubblesort. For that you need a lab with 50-100 PC's. For grad courses in parallel comp. or AI, you might need a semi-expensive cluster to play around with, but if you want something that just works you could just buy cluster time on AWS, which I'm sure they'd give a discounted academic rate. I'd expect the most expensive thing in a CS lab to be the electricity to power the computers.