There is one school that I have become seriously attracted to...Yale...yet I have not visited the school. I am on travelocity right now looking to book tickets to visit the school in two weeks, however...if I didn't go, would that hurt my chances of admission? And vice versa, does visiting help your chances a bit? I'm in Los Angeles, so it's kind of a trek...
I was in your situation a couple of month ago. I was enamoured with Yale. From my websearch it looked fabulous. But my visit to the camppus disappointed me. At daytime , it was too noisy, everywhere construction going on.
New Haven disappointed me more. I decided to apply in the first round itself. I postponed and right now I am thinking of whether I will apply at all. So, I'd suggest you may gain if you not visit at all.