You need to be sure it's the latest one, as from the outside they are literally identical.
The Apple Store where I know the people is a VERY busy one. Most of their Genius Bar stuff (outside of the land office business in cracked iPhone displays) is late 2012 MacBook Airs as those have thermal issues. It's the same store where in the Mavericks thread I described the celebration when they were allowed to wipe all their stock of Snow Leopard and put Lion on them. But the late 2013 Pros and Airs are not coming in a lot.
The Apple Store where I know the people is a VERY busy one. Most of their Genius Bar stuff (outside of the land office business in cracked iPhone displays) is late 2012 MacBook Airs as those have thermal issues. It's the same store where in the Mavericks thread I described the celebration when they were allowed to wipe all their stock of Snow Leopard and put Lion on them. But the late 2013 Pros and Airs are not coming in a lot.