Is 300k really that terrible? You would think that that would at least qualify it as "worth releasing"
I mean IIRC Persona 4 sold around that amount in America and it's considered Atlus's biggest success! It's not much to a bigger company like Nintendo, but if anything the fact that they're so much bigger and have so much more resources should encourage them, not be a deterrent.
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You have no time to ponder such questions, as Link has just grabbed a Smash Ball.
http://backloggery.com/herodeltiempo/sig.gif