What are good games for the Nintendo Wii and why?  

Guitar Hero is good,get a laugh with that.
You have to buy the guitar seperate from the game tho.

We got Wii a few months ago and I love it.

The Sports games are fun, but after a while, you need to find other games to play. I have found that I really like the car/racing games. Because Wii is all about moving the controllers like you would in real life, in the racing games, you're driving. I find these games really fun. The one I like the most is called "Excite Truck."

Also, we just got Guitar Hero and it's a lot of fun. You can find Guitar Hero for all of the different game systems, so I'm not sure it is any different for Wii. But, Guitar Hero is very entertaining, and can be quite challenging, especially when you're doing the harder/more advanced songs.

We also have a game called "Game Party." It's pretty entertaining because it has things like Skii Ball, Darts, Air Hockey, Beer Pong, Basketball, and trivia. it's quite entertaining, especially when you're playing with another player.

Enjoy Wii - I love it!

The real question here is "What sort of games do you enjoy?", there is no point in me recommending Splinter Cell: Double Agent if you hate sneaky/FPS type games (a cool game if you can get past its horrid camera system that really really wants you to look at walls and his bum, and a control system that for the first few weeks will make you want to smash the disk up).

My current favourite is Wii Sports. Super Paper Mario is OK (if you can get past the talky-talky bits).

Super Mario Galaxy, Metroid Prime 3, No More Heroes, Fire Emblem: Radiant Dawn and Red Steel YOU CAN'T MISS! Then you can find other ones, like Wii Fit, The Simpsons Game, and this kind of things.

Well, it you don't already have some of these classics (i.e: Super Mario World, Super Metroid, Donkey Kong Country, Paper Mario, Legend of Zelda: Ocarina of Time, Super Mario Bros, many others) you should definitely take advantage of it, especially if you don't already own the systems the games originally were released for. I already have those games and I'm finding quite a few games I missed out. The Bonk series, Splatterhouse, New Adventure Island and Shining Force. All good games. Now if you're of age and want a Wii game that'll make the time go really fast and is a lot of fun, I'd suggest The Godfather: Blackhand Edition. A very open ended game. Huge world to explore.

I personally think guitar hero 3 is very much fun. Even if you are not a musician. You just have to play the notes on the screen on a guitar. So its more realistic then with a controller ^^ My brother bought some games with wii points and he liked them but it's also a bit sentiment because we played that games on the original console when we were younger.