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I do some programming etc so I had to go back to the 13", again. It feels like a 15" when you first go back, so huge
 
Believe it or not, I went from a 15" MBPr, to a 13" MBPr and finally to a 2013 11" MBA. For the first week, I thought "no way am I going to be able to use this". After the first week, I couldn't live without it. I bought an open box at BestBuy for $1025 vs the 15" for $2100. I sleep easy at night because of that.

Was it the 11" Base 4GB/128GB?
 
Lived with the 11" since the week they were released. I mostly worked with it attached to a 27" display, however, so size didn't matter much. A few months ago, company issued me a 13" (corporate standard). Now, I find myself grateful for the extra pixels, especially when I'm in a hotel or on an airplane. I sometimes found it cramped to do office productivity stuff, but the 13" is much better. Not a huge delta in size or weight either.
 
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