Well, E3 brought no news so far that suggests Wii Play might be followed up by some another game with Wiimote pack in anytime soon, so it is pretty much 100% certain this game will keep selling at a high rate all of 2007. Since it is currently around 4M already, selling between 6-8M at the end of the year seems to be a certainty. Then including the upward potential for the years after 2007 means this game is way undervalued at the moment, and I personally think this game should be 10M expected lifetime WW sales at the moment.
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