Less than $100 is probably $99.99.
That's about $400 for somebody to take the plunge. I don't think it's the right price for a casual gamer and the software bundle is just Wii Table Tennis and the Jousting game, which are only 2 of the many games that come with every $199 Wii w/Wii Sports and Wii Sports Resort. And there is no Wii Fit or Mario Kart or any of that other stuff that the Wii has.
For hardcore who already own a system, $100 is decent I guess. I won't be picking it up for my PS3 since for a little bit more I could get a Wii and have access to a bunch of games, but others who hate the Wii by default will probably see it as a decent deal.