Multiboxing is really a lots-of-free-time-and-expendable-cash hobby. WoW demands your time and money anyway, but multiboxing comes with a lot of learning and UI-tweaking overhead which cuts into what a lot of us think of as play time. And obviously, more expensive. IMO, though I'm sure someone can prove me wrong, it's not appropriate for a college student. You'll have better things to do and worry about being able to afford.