Apple has not been able to provide “significant stock” of its new 13-inch MacBook Air notebooks to its indirect reseller channels, including Amazon and Best Buy, AppleInsider reported on Tuesday. Best Buy’s website says it is sold out online while Amazon is currently selling the 128GB and 256GB models for $250 more than the computer’s MSRP. Apple’s web store currently says the computer will ship within 24 hours of purchase and AppleInsider’s checks with 10 stores around the United States revealed that the Cuptertino-based company has had relatively no issues keeping the device in stock in its own retail channels. Only one Los Angeles Apple Store said it was sold out the 13-inch 128GB model. Apple revealed itsÂ mid-2011 MacBook Air family on July 20th and the computers were upgraded with Intel’s Core i5 and Core i7 processors and a Thunderbolt I/O port.