I have yet to buy a Wii but I'm currently considering a very important factor that will affect my decision:

The Bright Side (The DS Side)
As we all see now, the Wii doesn't have all that many good 3rd party games or even 3rd party support for that matter, now, the bright side would be that if the developers are considering this to be something new (like when DS came out).

What has DS got to do with this? Well for starters, DS was kind of a gimmick n the first few launch weeks with games that were extremely bad, but now, everyone, all developers support it fully due to it have sold over 10,000,000 units and games ranging from super hard to games even the extremely elderly will enjoy, heck, even EA took a shot at it and launched burnout on it!

My point now is if the Wii keeps this up we should be sure to see more 3rd party developers supporting the Wii other than Ubisoft

The Dark Side (The GameCube Side) 
This system came out and and man did it go down the very, very wrong road. Now, when it came out, it had millions of AAA titles but there was one catch...They were all 1st party and everyone waited for a day when proper 3rd party support came in, but it just never came...And from that day, the day where we lost hope of 3rd party, the GameCube declined so fast it was scary, and we can't expect Nintendo to manage all the games for the console, so they also declined and around the year 2005, there was probably a number of games coming out that was so small I could count them on a single hand!

Now, if the Wii goes down this road we can all see where we're headed..

The Big Circle Comparison (The Xbox 360 Side)
Finally, this is the last possible road that is similar to what the Wii is currently experiencing. For those who don't get what I mean, I'm talking about, I'm saying when the Xbox 360 first came out, it had maybe one or 2 games worth considering, then the rest was just some lame last-gen ports with improved graphics and better online, LAME! But now, it's a developers dream to work on the system with over 10,000,000 units sold and loads of AAA games.
We can currently see that on the Wii, with games like Prince of Persia Rival Swords, Farcry, The Godfather, Scarface and a few others and then only 2 or 3 first party games REALLY worth considering.

 The Conclusion and General Wishes
Is that the Wii will go down The Bright Side or The Big Circle Similarity road, or heck, maybe even a combination of both.

Now it's really up to Nintendo which road to go by, apparently, they have chosen the right path, though, with games like the Godfather and Scarface being extremely Mature and showing up on the Wii which is where it went wrong last time, and also, they have to welcome developers by letting them do whatever they want and let it take any advantage the developers would want from the Wii just like the Xbox 360 and that will lead to success and I mean look at some killer titles on the DS, not all of them use the touch screen, yet they were awesome,
Please Nintendo, hear my plea and make The Right Choice  , don't be dumb!
Extracted from my forum post