Halo reach beta key

Hi there, I'm thinking of buying a halo reach beta key if anybody is willing to sell theirs if they receive one. I'm not 100% sure if you can sell these or not but if you can and you know you are going to get one and your thinking of selling it, please post your price below. I've never bought beta keys so I am unsure of what the price will be but I will not go over 1600 msp/3month. Thanks!