Update (6/24 2:50pm): Monoprice has Lightning cables for as low as $4.50 w/ coupon code JUNE10. Orders of $50+ ship free otherwise shipping costs vary. For example, we priced out a single 3-ft cable and shipping was $2.32.
EZ Tronix via Amazon has a 3-pack of 3.3 ft. Poweradd Lightning cables for $14.99 shipped. That’s $8 off the regular sale price and tied with our previous mentions for the lowest we can find for an MFi cable. This deal is also $4 less than what apple charges for a single cable.
The cables are MFi certified which means they meet Apple’s performance standards and are safe to use with your iPhone.