If you have dead space 2 to sell. how much is the price?

I know this guy who has Dead Space 2 to sell. He's trust worthy.
Contact him.

3000$

Y u know the games not available in all regions ? Good tip.

4 watermelons and a piece of bread

9.99 $

tf2outpost.com

10 BAHT

Try http://www.steamtrades.com

Well, just remember you could get DS1+2 bundle even for $5, (and I'm guessing Russian price could be even cheaper), so it won't have much value between gaming-traders.
But you might be lucky with some amazon or other ebay - I sold my LA Noire I received for preordering Max Payne 3 for something between $15-20 (can't bother with exchange rates), even through it's value is probably also something around $5-10...