Loot Ninja writes:
"We all know that developers and publishers aren't the biggest fans of used game sales. It cuts into their revenue stream, but makes GameStop and stores like it a ton of cash every year. Many publishers are finding ways to add value to the new game sales to discourage gamers from picking up used copies.
I recently read an article from Stephen Totilo over at MTV's Multiplayer Blog with his proposal on how developers and publishers can stop used game sales by adding Achievements/Trophies for purchasing a new copy of the game. While I like the idea, I realized that Microsoft and Epic had already implemented their own system when I opened my copy of Gears of War 2."