There's an open box item at my local future shop. 128GB iPad 4 for $549 normally $799. They said it was bought and returned the next day and nothing wrong with it. So I'm wondering why that much of a drop in price? Is it cause of the Air coming out? Is there that much of a difference in the A7 compared to A6X? I asked them to hold it for me and right now I'm leaning towards getting it rather than the Air. If I was to get the Air it would be the 64GB cause $799 is too much But I'd love to have the extra space that the 4 would come with. But would this new chip in the Air be worth it?