Title says it all MBA 11" owners, is this your only set up in terms of a screen. I have a dell 23" screen and its great, only thing is I have found myself using it less and less. I have a buyer lined up to buy it for $175 (cheap but its off CL and i don't want to bother with ebay) I have found myself enjoying this machine more and more on the couch, outside, etc. I don't see the point of having an extra screen if I don't use it as much anymore. Plus with the double tap feature on safari, it works wonders. I don't want to regret selling this dell, but I feel right now this is a great way to make $175 on something I don't use much anymore. I use this basically for internet, music, some photoshop, photo management. Thoughts, experiences?