Purported gold and steel gray iPhone casings get shown off on video

a gold/champagne iPhone 5s is looking like a safe bet for the rumored iPhone event on September 10, and while I haven't heard anything about a steel gray/graphite iPhone 5s coming along for the ride, a small number of parts leaks do seem to indicate there's at least some experimentation going on in the labs.
Casings for both variants, gold and gray, have found their way onto video for your early ogling pleasure. The first video, up top, if from TLD and shows a purported gold iPhone 5s casing compared to the current iPhone 5. The second video, down below, is from Best Tech Info and shows what could likely be some test parts, or possibly a fourth color variant.
Check them out, above and below, and then let me know - if they were on the shelves today, which one would you get?
Source: TLD, Best Tech Info via MacRumors
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Rene Ritchie is one of the most respected Apple analysts in the business, reaching a combined audience of over 40 million readers a month. His YouTube channel, Vector, has over 90 thousand subscribers and 14 million views and his podcasts, including Debug, have been downloaded over 20 million times. He also regularly co-hosts MacBreak Weekly for the TWiT network and co-hosted CES Live! and Talk Mobile. Based in Montreal, Rene is a former director of product marketing, web developer, and graphic designer. He's authored several books and appeared on numerous television and radio segments to discuss Apple and the technology industry. When not working, he likes to cook, grapple, and spend time with his friends and family.