Apple's new 15-inch MacBook Air is already $49 off at Amazon

Apple announced its newest laptop, the 15-inch MacBook Air, this Monday during the brand's annual Worldwide Developers Conference -- and there's already at least one retailer offering a nearly $50 discount on pre-orders. Apple set the retail price at $1,299, but right now Amazon is listing it for $1,249.99. You won't see big red discount numbers or really any indication that its on sale, other than the fact that it's cheaper than at any other retailer. The discount applies to the 256GB storage c...