When I called Purdue, one person said it is not first come first serve but the woman in housing said she highly recommended that I go ahead and sign the housing contract because things were being done differently this year. I know Purdue is my number one choice, so I paid the deposit. However, someone had posted that some schools offer more merit when they see you have not accepted. I am thinking Purdue is not a school that would be doing that with so many applications. I had also read that Purdue does not allow appeals for merit.