The X360 version sold 11,500 copies in January for a total of 127,250 copies. The current 228,000 projection is a little too bullish, even with optimistc European sales.
December numbers have the 360 version selling 68,500 more copies much less than 2x the November sales. North America sales total at 113,750 copies. This game is probably about on target unless Europe and Australia are really picking it up.
Superman Returns for Xbox 360 sold 49,500 copies in November. Stock is currently priced at 10x first month sales. That seems overly bullish too me, considering the game has terrible reviews. Doubtful word of mouth will carry any momentum.
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