I've always rolled 32gb black, never been a fan of white because I feel like it makes the device look cheap. If you guys are having trouble preordering try it on the iOS apple store app, I was finished in minutes
Started the ordering process fully intending to upgrade to the black-16 but before submitting the order I spent 1 minute thinking about it and changed my mind and got the black-32. Glad now that I did. Sept 21 can't come soon enough.