Newegg via eBay Daily Deals offers the Coboc Light-black 6 ft. MFi Certified black Apple 8-pin Lightning Connector for only $9.99 shipped. That’s 50% off the regular price and the lowest we could find. It’s even cheaper than the 4″ AmazonBasics cable. This cable is Apple-certified and as such you shouldn’t have any issues with iOS 7 compatibility for charging and syncing (like cheap knockoffs).
Check out other MFi Lightning accessories in our roundup here.