The Passport and every other cellphone that was on sale during Christmas/Boxing week have now returned to their regular pricing. It has nothing to do with how well a phone is or isn't selling. At the beginning of a new quarter the phones go to the regular pricing and then go on sale occasionally depending on who is selling the device.
Unfortunately you waited until the sale was over and now the Passport is back to the regular pricing. Keep an eye on BestBuy, Future Shop and any other third party retailers for sales. They get paid on hitting volume targets so are more inclined to give a deal on devices then a corporate/dealer owned cellular store.
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