Just consider that the 360 is a current generation console and not a "next gen" console. Along with that, you should also consider that the DS and PSP have dozens of million selling Japanese RPGs between them, and you didn't even specify home consoles.
Besides that, Dragon Quest Swords has sold 700k with no PAL data included, and it likely had a FAR lower budget. And why is 800k a milestone? It maybe JUST broke even with numbers like those, and it hasn't even sold a million yet which is widely considered the definitive milestone for most games. So no, it's not impressive in the slightest. And considering all of the hype and marketing that went into it...







