due to the difficulty in registering for classes. My son has been accepted to Umass Amherst as a computer science major. Ostensibly, the net cost of attendance of Umass Amherst would be about $7.5K cheaper per year than some of the other schools that he has been accepted to like WPI and RIT and dead even with the net cost of attending CWRU. My question is how common would it be for a student at a state school like UMASS where the computer science classes are in high demand to take more than four years to graduate due not being able to register for all the required courses (inside or outside the major for that matter)? I have heard of this happening at state schools and wanted to know if any current students or parents could weigh in with personal experience on whether this a legitimate phenomenon to be concerned about that will effectively increase the true cost of attendance over four years.