I always try to go to GameStop. There you can trade in your old games for store credit and you can get a membership and get off some select games and be eligible for coupons, sweepstakes, and get a years subscription to Gameinformer.
if you may know in "india" games are of 50% cost because of the IT laws like portal 2 in $10 instead of $20 and that's with every game !! you can check on flipkart.com and if you want i can buy for you guys and i will give ,say 35% off. cause i want to earn the rest.