The next time you’re planning to get your hands on an ultrabook, don’t be surprised if the retailer informs you that you might have to wait as the product is out of stock. According to a report by DigiTimes, they are claiming that metal chassis supply used for ultrabooks are currently suffering from shortage. The reason? Apparently the shortage is due to Apple buying most of the supply which they are then using for its MacBook Air and MacBook Pro lineup, both of which features aluminum unibody designs. Two of the largest metal chassis manufacturers, Catcher Technology and Foxconn are reportedly installing new CNC machines but will not be able to meet the full demand at least until the end of 2012. With the Retina display MacBook Pro reportedly dropping to 2-3 weeks in its estimated shipping time, we guess that Apple’s products are certainly in high demand, although we cannot verify if they’re truly that desired to the point where other manufacturers are suffering from material shortages. What do you guys think? Is Apple really snagging up all the metal they can get?