Third-party Lightning cable unreliable
The iPhone 5, the new iPod Touch and iPod Nano made use of a new type of connector that is the Lightning dock connector. It replaced the 30-pin dock which was initially introduced in 2003. However, unlike the old dock connector, the new one has a circuitry that is a lot more complex than the old one. In fact, it is almost impossible for the knockoffs today to be good and as reliable as they could be with the 30-pin dock.
The new Lightning dock connector comes with a complex circuitry that makes it hard to clone. However, based on the Double Helix Cables owner, he told CNN that the clone will happen but it will take some time before the China based companies will be able to do so. In fact, even in mass production, it is expected that the cable will not be as cheap as the 30-pin dock. This is due to the fact that it has a more complex circuitry.
The fact that Apple is putting the price of the adapter at a hefty price tag of $29 is of no help. This is because for a cable, it is rather expensive too. In addition to that, Apple will also hold the rights to sell the cables initially, thus denying third parties to have the license required to sell them. With this being said and done, the cost of owning an iPhone 5 seems to be the highest as of date.