I'm not sure which $500 cost difference you're referring to? The difference between my Lenovo and my MB Air or the Lenovo and a potential Surface 2 Pro, or othe

I'm not sure which $500 cost difference you're referring to? The difference between my Lenovo and my MB Air or the Lenovo and a potential Surface 2 Pro, or other? If you're comparing my Lenovo to my MB Air, the price difference is significant because I prefer my Lenovo, and therefore, the cost of my MB Air isn't the $500, but the full $1100, as the only reason I have it is to package an iOS app occasionally.