I mirror the prevailing sentiments here. I recently went to my first open house, and it has disrupted the pecking order I had among five acceptances. I expect they all might cause further disruption. There is no replacement for spending time with people in places - frankly, after the internet/computer drudgery of applying, I relish this stage where things become tangible and real.
Appreciate it. Don't know if it makes a difference, but I put in my application extremely early. I was done with all of mine by December 15th - self-imposed deadline to avoid ruining Christmas.