I'm surprised more CAG's aren't using these codes. I've gotten several free movie rentals at Blockbuster and even 1 free game rental (and will probably pick up a few more to try out some other Wii games).
For a short time they had a $100 Blockbuster gift card up there but it ran out before I got enough points. EARLY on they had PSP's and PS2's for pretty low redemption. They have since upped the points required for the good stuff to pretty high levels (you can get a SonyStyle $25 gift card now for 500 points - ie, 50 12-packs wheras early on they were 250 points or so).
The movie rentals are 36 points and the game rentals are 64 points. The 36 points is a pretty good deal - a $3.79 value for only $7.50 - $8 worth of Coke products (if bought on sale). My last movie rental from Blockbuster included a scratch-off voucher with another 10 point code in it - so I got 10 of the 36 back from the very movie I rented.
The Blockbuster codes go "out of stock" all the time (they are just PDF files you print and take into the store like a coupon), but they always come back in a few days. Occasionally they have PS2 and PSP games but those go pretty quickly. I know they had Loco Roco a few months back and I would have snatched it but I already had it. Also, the Blockbuster coupons expire Dec 26th or something. I'm hoping they will update that, though, as Coke has extended this promo through the Spring (when it was originally intended to be for last Summer only).
Right now I'm sitting on 850 points hoping that Blockbuster gift card comes back. But any more that I get I usually redeem for movie or game rentals. So I won't ask for anyone to send me codes
But if you got 'em sitting around and don't plan to use 'em...