I have to decide on which iPod Touch I should get. My problem is that I cannot decide on whether to purchase the 8GB, 16GB or the 32GB. I have seen the 8GB and the 16GB in retail stores but I haven't seen any 32GB iPod Touches. Basically what I am asking is: Which one should I get and why should I get it. Any recommendations on where I can purchase a 32GB iPod Touch in a retail store? I don't want to purchase one online.