Nerval's Lobster writes "As noted by CNET, Apple hasn't released data on the number of iPhone 5C units it presold in the device's first 24 hours of availability—a first for the iPhone since 2009. Why is that? Reporter Josh Lowensohn speculates that iPhone 5C sales 'may not be as impressive when stacked up against tallies from previous years,' with one outside analyst suggesting that Apple racked up 1 million iPhone 5C preorders last Friday, or roughly half the 2 million presales scored by the iPhone 5 on its first day of ordering availability last year. However well the iPhone 5C ends up performing on the open market, Apple's decision to launch two iPhones this year—rather than a single 'hero' device—could result in self-cannibalism, as users who would've bought the iPhone 5S instead gravitate toward the cheaper option. Cannibalism is a topic that Apple knows well, as it's been dealing with the iPhone cannibalizing the iPod for the past several years; but a new iPhone eating away at another new iPhone is fresh territory for the company. During earnings calls, Apple CEO Tim Cook likes to argue that cannibalization—whether iPhones feeding off the iPod, or the iPad taking the place of MacBooks—is a good thing, so long as it's Apple products eating other Apple products. But it's far more questionable whether he would welcome the iPhone 5C—almost certainly a low-margin device, despite its current-generation components and plastic body—taking a bite out of the more expensive, and presumably higher-margin iPhone 5S. Margin erosion remains a prime concern of investors and Apple watchers; anything that contributes to that erosion is bound to be viewed unfavorably."