@Veder Juda
I agree with your take on AC:CF, I was a big fan of the DS game and was planning on getting the Wii game as well before reviews and user impressions started coming in. The DS game also had a large online fanbase, because of the online component and trading in the DS game. So it is likely that those fans were also familiar with the reviews and lack of change in City Folk. Still the comparison to Animal Crossing was one of the few drawbacks to NSMB Wii I could think of so I thought I would toss that out there.

@ Erik
That is an interesting way to look at it. But I think you also have to consider why New Super Mario Bros. will have a lack of competition. It's been a long time since there has been an extremely successful 2D platformer on a home console. While WSR and Wii Fit + are both getting competitors, it's because of recent success in those genres. I think there will still be a demand for a 2D Mario platformer on a home console, but there's always a chance that there wont be, and that's why other companies haven't tried making many 2D platformers recently.

In respect to market growth, EA and Ubisoft's games can only make sales of Wii Fit Plus stronger. This is because if you want to play their games, you will need a balance board. And if you buy the balance board, you are also buying Wii Fit Plus. Of course with existing owners this could be a problem... but I doubt it! Moms across the country will be getting this as x-mas gifts from their kids and husbands!

As for Wii Sports Resort, I mostly agree. But I think it is a blue ocean strategy because it is offering new experiences that couldn't be done with the standard wii remote. Stuff like Frisbee and Basketball will likely draw in new audiences that weren't interested in the original Wii Sports. Plus it's a genuinely good game, so I think that will come across in sales.

As for nSMBWii, I completely agree. I think it has alot of potential with both the core and casual audiences. Core gamers will buy it out of nostalgia and casual gamers will buy it out of it being easy to get into.

Ubisoft's Your Shape mainly uses a camera, and EA's series looks to be focusing on cheaper exercise equipment like the resistance bands in the first game. I know EA's Fitness at least supports the balance board, but I'm pretty sure it doesn't require it, and I don't even see mention of it on the Your Shape website.

As for NSMBW, the reason there are not more successful 2D platformers for home systems out there is because there hasn't been a 2D Mario, Donkey Kong or Sonic game for a home system since DKC3 in 1996, and no company has attempted to launch a new 2D platform "mascot" character since the 16-bit era. The industry are lemmings, and they just followed Super Mario 64 and the early Crash Bandicoot games, and when nothing could recapture the explosive success and excitement around those games, platformers just dwindled. No one turned back towards 2D until, well, NSMBW.

I think there is a market for 2D platformers who have gone unserved since the mid-90s. The only 2D platformers even out there for home consoles are treated like niche games, not like "mascot" games like they used to be.

I believe in NSMB Wii !