[quote name='Teh Nitwit']They do, somewhere around April/June 2010. I know it sucks. I'm torn about opening my 2nd copy of the CE and registering them vs. keeping it nice and sealed.[/QUOTE]
see, thats the big issue, and its taken a step further with now including 'timed' DLC. While you're getting something extra, you're forced to take advantage of it. I noticed this w/ the Sgt. Johnson code, it says in small print that it expires in 01/10. And its like how all digital copy movies are a waste if you don't redeem them b/c they expire in a year.
However, w/ this edition, the two sticker tape seals sure are nice if you can lift them off carefully. Since the codes expire, that would probably effect the overall value anyway. Thus, if you were to open it, use the codes, but keep the game in mint condition, the value should still hold up. Guess we'll have to see.