You realize you don't have to hope for this, right? You can buy it now, then go back with your receipt after the price drop and get it readjusted. People have already confirmed Wal-Mart will do this, but you can ask if you're really paranoid.
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SEP Nash, Smelling Like the Vault since 1996
Step FOUR! Get Paid! http://img.imgcake.com/stevenashgifpu.gif