for the rest of the titles, EB didn't write how much more they will pay, so it would be around 2-6 dollars i think. and i bet EB knew that people wouldnt go through that much trouble (go to futureshop, check TIV, go to EB, argue with the employee, wait for him/her to call, confirm it just to get 2-6 more)
so basically, a promo without losing any money.
just like EB told the employees not to give out TIVS over the phone or asking,
make sure they BRING to title first, so even if the TIV wasn't what the person expected, he/she'll want to trade it since the game is with them at the moment. god damn it i blame Sneaky EB managers.