I am not a student, but an engineer that wants the option of working from home.
LT will not work as I use lisp routines occasionally.
Well if this is a case of working from home, then the license for the seat you have at your office will allow you to install it on (2) computers. They've included this courtesy for the very reason you speak of... ONE person wanting to work in both locations... not exactly fair to charge them twice, and so as long as it's not being used both at the same time, I believe (have to read the EULA for specifics) it allows you to install at home as well.
Pretty much every one of us, here, in our small firm, has a copy installed at home as well.
***EDIT***
Yea, what Time said