I was dealing with the same decision. I actually chose my college because they have boarding ON CAMPUS! I think that's great, but I think you should probably wait and get settled into school if you choose to bring him/her still, same as im deciding. I want to compete and do school rodeo with him, but im going to wait.
The other thing is, my boy is pastured all day, no stalls and never has been in a stall. I already down graded him to our 100 acres! His whole life he has had wide open space, I would hate to stall him just to bring him with me to school. Im considering looking for somewhere close to campus or the city I will be in that will board my man in a more open area. Then again, im protective of him and don't like the idea of what other people do around him or to him while im not there.
The other thing I was worried about was, at some barns this was a problem, you don't know what they might do to your horse while you arent there. Just an example, while an owner of a horse wasnt at the barn, another owner hit her horse in the face with a shovel and broke out all her teeth and caused serious damage. That's horrible! I wouldnt want something to happen to my horse because of someone elses reaction around him or whatever would cause someone to mess with someone elses horse. Just an opinion!
You've got to give something you've never gave,
To get something you've never had. - Pat Parelli