Shouldn't this be in the Steam Games section since your game is a Steam game which is exchangeable through Steam Trading? Selling Steam Games for cash is against their Terms of Agreement.

Any games and items such as coal and coupons exchangeable through Steam trading. CD-keys belong in the Accounts section.
 
when is it released and did you actually get a coupon for it even thought its not released?
 
when is it released and did you actually get a coupon for it even thought its not released?
Lol. I meant, when does the auction end? "Highest bid gets it"

Also, what he has is a key. He either traded for it, or got it from a gaming event.
 
Maybe you should also mention that its a beta and not a full game? You will still have to buy it when the full game is released, am I right?