So you're really into the idea of fingerprint-scanner phone security, love the color gold, desperately need a dual LED flash, and finally decided to throw down some cash on a new iPhone 5s. They're fragile beasts, so you're probably looking to equip it with some kind of case, too. Most retailers sell run-of-the-mill, cheap, plastic, snap-on varieties. But you want something nicer. Leather cases have a more "gentlemanly" vibe and a little less "I bought this from a teenager at a mall kiosk" sensibility.