I already asked this on the main DansDeals site, but since this is a grey market item which is presumably not covered by Sony's warranty, does anybody have any experience with the merchant's warranty coverage? Does the Amex extended warranty apply to grey market products? I don't think it does - from the T&C: "Extended Warranty will extend the terms of the original manufacturer's warranty for a period of time equal to the duration of the original manufacturer's warranty, up to one (1) additional year on warranties of five (5) years or less that are eligible in the United States of America." And the original manufacturer's warranty is not eligible in the United States of America.
Much as this price is appealing, I think I'll wait a bit longer for the price to drop elsewhere. (I probably should have bought it late last year when it was selling for $150 less than now, but I assumed that the price would go down over time, especially after its successor was announced. If I'm lucky the price will drop again within the next month, but I need it by the end of April so that's about as long as I can wait.)