Before I asked you guys if I should get one.
I got one.
I love it.
Now I need to get some games. I got the Mario Kart bundle pack so... well I have Mario Kart

Current owners - tell me what games are addicting. And could you tell me what type of game it is (ie - fighter, shooter, action, adventure, puzzle, etc).
Thanks bunches.
Online Mario Kart, that's why.
Wifi lets you play against other people anywhere in the world. It is FREE, no monthly fees or anything. All you need is a ds, a compatible game, and wireless internet access. If you don't have wireless internet access but you do have high-speed internet, there's an adapter you can buy and plug into a USB port so you can use your internet connection with your ds.
Just get one

I have a PSP and a DS, and truthfully, I spend twice as much time playing on the DS

Games r teh PWN!
if you are in America or somewhere like that they have WiFi hotspots just like wireless internet except everyone can use it
here in England they havent got that yet
I haven't played the PSP, but I've seen my friend play it. The graphics may be a bit better on the PSP, but DS has much higher quality games and wireless multiplayer.
Plus, I hear the PSP breaks a lot more easily than the DS
PSP isn't worth is anymore, game-wise, it has the MP3 and internet access for a plus, but it's now falling short inthe games, while DS is owning with their game snow.
DS has many great games. The new WiFi connection just made it even better.
Yes, definitely get a DS. It's got one of the greatest upcoming games list of any console and the best current lineup of any current-gen handheld.
Get a Mario Kart DS Bundle Pak. If you live in Canada, check out Zellers. They may still be giving Animal Crossing: Wild World for free with Mario Kart DS Bundle Packs.
The pricing for the bundle is as follows:
Canada: $179.99
US: $149.99
Bump... cause I updated it.
Advance Wars - strategy
Super Mario DS - adventure
Animal Crossing - sort of like a real life sim, except youre in a town with animals just doing stuff, hard to explain

Super Mario 64 DS is a platformer, not adventure =P
Advance Wars: Dual Strike - Strategy
Animal Crossing: Wild World - Uh.. Mix up Harvest Moon with The Sims with a healthy dosing of fun >_>;
Mario & Luigi: Partners in Time - RPG
Kirby: Canvas Curse - Platformer
Trauma Centre: Under the Knife - Surgery Simulation o.o;
Phoenix Wright: Ace Attorney - Lawyer Simulation >_>;
Jump Superstars - Fighting (Japanese)
Castlevania: Dawn of Sorrow - Adventure
GBA titles x10000
How about Ultimate Spiderman? I've always been a comic nerd but I'm afraid it might disappoint.
P.S. Thanks for the list.