Rachetman: I have to disagree. Casual Gamers have responded to almost each of the Wii game series, buying Wiis for those experiences. And if Wii Party is good, it will be more of the same.
But, the casual crowd has already responded to Nintendo and will not respond to PS3...where most of the hardcore gamers have responded to PS3, and move will not make them respond to SONY. However, those games you listed save Wii Party are hardcore games. Games, that gamers love, and games that they absolutely will respond to. Now, will they respond in enough numbers to have a good holiday season? I dunno. Hopefully, because it looks like a great year of games for Nintendo.