That's sales data for other Zelda games. PH is probably a week or two away from outselling TP on Wii which has been out for more than half a year. PH is doing amazing well for a Zelda game. What will determine how well this game sells well in the long term is who these new Zelda purchasers are. If PH has simply attracted old Zelda fans who didn't buy TP for whatever reason, we'll likely see sales fall rather quickly as time goes on (though it will still sell solidly). However, if PH has attracted the casual market, we'll likely see this game high up in the charts for many months to come, much like New Super Mario. I don't think it'll sell as well as New Super Mario, but I think it'll sell LIKE New Super Mario, in that it will continue to sell well long after its release.
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http://vgchartz.com/japtotals.php?name=zelda&maker=&console=
That's sales data for other Zelda games. PH is probably a week or two away from outselling TP on Wii which has been out for more than half a year. PH is doing amazing well for a Zelda game. What will determine how well this game sells well in the long term is who these new Zelda purchasers are. If PH has simply attracted old Zelda fans who didn't buy TP for whatever reason, we'll likely see sales fall rather quickly as time goes on (though it will still sell solidly). However, if PH has attracted the casual market, we'll likely see this game high up in the charts for many months to come, much like New Super Mario. I don't think it'll sell as well as New Super Mario, but I think it'll sell LIKE New Super Mario, in that it will continue to sell well long after its release.