Costco is currently running a limited-time offer for its members where they can purchase $100 worth of PlayStation Store credit for just $80. This promotion involves buying four $25 PlayStation Store gift cards for $79.99, providing a notable 20% discount. However, the discounted price is only visible to Costco members who are logged in, and each member can only take advantage of this deal twice. It is available until October 11 or until supplies run out. This promotion effectively brings the price of GTA 6's $100 Ultimate Edition down to the regular $80 price for standard AAA games. Although $80 is still a significant amount for a single game, this offer presents one of the few opportunities to save on GTA 6, particularly since Rockstar Games is unlikely to discount the game officially soon. Joining Costco just for this deal isn't economically beneficial unless one can take advantage of other membership perks. This offer coincides with several other PS5 discounts on games and consoles available during Prime Day.