dealsmass effect 3 for xbox 360 or ps3 for $29.99

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So, I guess Bioware didn't do as well with ME3 as they hoped. As noted, do not buy used. You get locked out of the multiplayer, which will put you at a distinct disadvantage at the end of the single player game.

EDIT: At least if you want to get one of the "good" endings.

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It is also available at the same place for the PC so all editions are on sale for the price listed above http://www.gamestop.com/browse/games?nav=16k-mass+effect+3,13ffff2418-4f-162

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GREAT game, avoid gamestop at all costs, however.

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Just remember that places like Gamestop lower the price of games. When Sony and Microsoft only sell downloadable games and run Gamestop out of town you'll always pay full price.