I am currently in college, am maintain a 10g and 55g at my off-campus house. I am taking 19 credits (above course load), a double major in music and art, meaning I have at least 10-15 hours of shooting/piano practice/printing outside of class, and working 20 hours a week- - - and I still make sure to do every other day water changes, and care for the fish in every possible way I can.
If there's a will, there's a way.
Like members have been saying, moving it, will be an absolute pain- if you are INCAPABLE of moving the tank safely on the regular basis that you described, don't go for it. However if you think you can do it in a proper manner, and most importantly are willing to take the proper measures and precautions of doing so, there is no reason why you can't have a tank (or two) in college.