Correct me if I am wrong, but wasnt this a $100 gift card offer (I honestly don't know), which cannot be used on the current purchase or was this $100 off out the door. Without pigeon-holing everyone that shops at Wal-Mart as poor (probably too late on my part for that) I am saying that expensive electronics are not necessarily what they are known for moving, of course, I just looked at their website and they have the 360 pro on the front-page so maybe I am way off. Anyway, my original "argument" was that NPD should be able to account for bumps if the participants are representative of the market as a whole.