By the way, here are some reasons for giving the tower a try:
1) free gym (save you $30/month)
2) free wireless internet, assuming you could get a notebook with a wireless card (another $30/month)
3) free utilities (water, gas, electricity…let’s say $25/month)
4) no need to pay extra for transportation.
I have learned the importance of frugality when I was in graduate school ( ...in the very expensive yet beautiful city of Santa Barbara). Little $$ add up!