Hey guys! I have been creeping on these posts for sometime now, but now I finally have something to contribute!
I was accepted to Columbia the Wednesday after the interview weekend - I was a great match with one of the profs I interviewed with, and I'm assuming they only sent out acceptances to those who were a "1 to 1" match or close enough...I had no idea there was another weekend, so I'm guessing they really want good matches before placing the not-so-good matches.