I'd like to think that people here have a little more common sense than to think only one person has handled this iPhone. We're not sure how long that person has had it, how many people have handled it and if they made any attempt to wipe it down after handling it. I think the white vs. black should be based on color preference and now "how something will show up".
Everybody should be using a case or a holster of some sort with this iPhone anyway. If you take care of your iPhone, it'll stay looking fresh and clean.
what kinda crack have you been smoking? that reply is completely off base!