The "wait until..." thing sounds like back in 2003 or so with the Gamecube users.
Nintendo definately made the biggest splash this time around. Casual and non-gamers are eating it up, while hardcore gamers are waiting for the bigger titles. Looking at it's line up, it has a good amount of hardcore (Metroid, Smash Bros, Galaxy) stuff, along with a lot of non-traditional titles coming up for the non-gamer.
I honestly can't say I've EVER seen Nintendo come out swinging like this. I've even seen Wii commercials on Adult Swim, American Idol, etc. I've only seen a Gamecube add like 4 times in my life.
Pretty crazy.