Now that Mavericks is out as well as the new rMBP models, I am still so tempted by that retina display to replace my current 2013 MacBook Air 13" base unit. I figure I should be able to sell it for $900 since it's just a couple months old. The refurb price has dropped to $1059 on the base 2012 rMBP 13" and the new 2013 rMBP 13" can be had with the EDU discount for $1199. From my MBA, it would be roughly a $160 upgrade or a $300 upgrade. 2012 rMBP 13" "Pros": $140 less 4 GB more RAM 2013 rMBP 13" "Pros": Faster processor? Faster graphics chipset Faster SSD Newer chipset 1 hour longer battery life Same on both: SSD size Beautiful retina display Similar "UI lag/scrolling" Close enough in size and weight (yes, 2013 is slightly thinner and lighter) I know many will say that the RAM is worth upgrading for $100 and then paying more for the 2013 version to make it $1299, but for this comparison and poll, I'd like to keep them as the base configs (especially since my current 2013 MBA has 4 GB and seems just fine for my use). Thanks!