This article from Next-gen.biz claims that Big Brain Academy only sold 1.3 million in North America and Europe up to 1 March 2008. If it shipped around 380k in Japan, not sold, then there is reason to believe that this stock has become overvalued. Nintendo's shipped numbers in this case might not have indicated near how much the game actually sold, they may have overestimated demand after initial figures and over shipped to retailers. Currently this will have sold only 1.7 million max (1.3 million sold in North America + Europe and .380 million (max) shipped to Japan). It remains to be seen how much this game is actually selling to determine how it will eventually end up.
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