There was a feel on campus that the people who were really going to 'make it' were only putting in B- or C+ work and spending the rest of their time working on side projects. There were very few days in a given year when more than half of the computer labs were full at the same time, and with Unix boxes you can always remote in to the flavor of machine you need.
You don't need much research budget if you already have access to time on equipment. I'd be curious to know if Dijkstra had access to a similar embarrassment of riches.