return it a week later for a full refund.
The deal, as seen on their website, states that customers who pre-order the Ubisoft game will be able to pick it up on the release date and play it for a full week, then be able to sell the used game back to EB for full retail price. The deal only applies if the game, case and manual are kept in good condition, and if the game is returned within a week of purchase.
If we were Sony or Ubisoft, we would be less than thrilled with this promotion, which seems to suggest that Haze is only worth a week's investment of time. Then again, a sale is a sale, and maybe more Canadians will be tempted to purchase the title, if they know ahead of time that they don't have to keep it.