I purposely posted this in the MacBook Air forum as I value fellow MBA owners opinions, and I know many of you have another computer in addition to your Air. I have decided my 13" Air is going to be my 'main computer'. I use my 13" MacBook Air 80% of the time and I feel in a way I have too many computers. I also have: 2009 Mac Pro, 2.66GHz Quad Xeon, 6gb ram, 640GB HD, 18x SuperDrive, 2x NVIDIA GeForce GT 120 512MB and 2011 17" MacBook Pro, 2.2 GHz, 8gb ram, 512ssd The 17" offers mobile power, that's great but I'll miss the Pro's benefits like option of dual screens, adding HD's .. not that I use the dual screen much, I find one 27" enough and so far I haven't added HD's to the Pro and having to sit at a desk in order to use a powerful computer is the downside of that. Both the 17" and the Mac Pro do get used now. My Mac Pro is used for storage, back up, server, photoshop, illustrator projects, downloading, but not much for day to day work, I use my Air all I can. The 17" currently gets used when I want larger mobile screen real estate for couch computing or taking on non-flight business trips I'll used the 17" and Air together in my hotel ... so they're serving a purpose now. Either way I've decided one has to go. A Mac Pro, 17" MBP and a 13" MacBook Air seems a little excessive. I don't need the money, but I think if I worked from less or even one computer I'd be more organized plus I have a staff member who will benefit more from using either of them than I currently am. That's all because I love my Air so much As far as power is concerned each one has it's strong points, which one is more powerful I'm not sure. The big question is which one to keep, what would you do?