I picked up Turok:Evolution for $2.82 yesterday night with the coupon+edge card. I know it sucks, but I loved the N64 Turoks and figured I would complete my collection.
The clerk looked like he was typing a book while trying to get the coupon to work (I guess he was adjusting the price of the game because the computer knew not to do it), but he didnt give me any problems, or say anything. It's great that they are honoring it, I would guess it is really to clear shelf space for the new systems.
There are 5 GS/EB's within 15 minutes of me, and I am going to hit all of them today, and get one game from each, whatever is cheap. Good luck to everyone else who wants to stockpile GC games.
Edit: Stopped by the closest EB during lunch, with coupon in hand. I found a couple of $5.99 games and a pair of $4.99 that I would have rather had (XIII, THPS3). I handed the clerk a $5.99 game with the coupon, and said "I would rather get one of these $4.99 games, but I dont know what you would do... maybe pretend it is $5.99 and I'll pay the $0.99?"... He called the manager, and the manager just said "Mark it down to zero"... I walked out with XIII for FREE!!! who-hoo. Thanks OP and those who made the sheets of coupons!