I gotta say that I agree with Brad's analysis, but it's dependent on Gamestop doing the right things businesswise. I don't think that's a slam-dunk sure thing, though I think the odds are pretty good.
I'll say this, if Impulse purchases give discounts at Gamestop, I'd be more likely to shop at Gamestop (though I expect my days of console purchasing end with the PS3, it's getting too evil)
I just wish the Impulse purchase money could be used to fund another game, but it Stardock even going to look for relationships like what it has with Ironclad in the future? (I know the project I'd want to see funded, but it won't happen)