Interesting points, I will have to consider your position, but I also have to say,The Apple Store said it wouldn't
My experience with the Apple store personnel is that they mean well but have poor technical product knowledge. I had to argue with them when buying my MBA that I had to buy the memory upfront because it can't be installed later. I had three different sales people and one genius insist I could upgrade memory later. I got another genius to look it up and then they all agreed that it couldn't be done later.