It's especially a horrible OS to run a lab on. Ditto for Macs.
I don't see for the life of me how a university with a comprehensive identity-management system (they all have one, if they have email) gets by having desktop settings and file access tied to the machine and not the user. 'Specially given that college kids are not exactly sedentary.
When I was in school, we still used telnet and pine on AIX to check email. That at least gave you a small, portable console environment that was your own. Now that schools are moving to web-based email, things are even worse.
Three words, unis: Sun m.f.-ing Rays. The kids get their own desktop preferences, browser settings, bookmarks and files wherever they go; everyone's happy.