Flipping an iPhone 5S on Opening Day

Has anyone flipped an iPhone or an Apple product on opening day? Specifically a "S" phone.

I'm not sure how the hype is, but it would be cool to make a profit. A few of my friends have done this with iPads and the Nexus 4 launch and made a nice profit.

An unlocked iPhone 5S 16gb should cost about $700ish after taxes.