I had no idea about the gold box discount... I'm a little surprised no one mentioned this before?
Mine just shipped, but when I click on 'today's deals' it offers me the upgraded 11" for 900 before the 20% discount.
I'm happy, don't get me wrong, but I go crazy about trying to get the very best price!
If anyone is planning on trying to get customer service to apply the 20% discount retroactively, I'd suggest that you browse a bunch in the air section, and keep revisiting the pages before selecting the 'today's deal' link. Keep in mind, you only have an hour to order after the offer shows up!