Because 1st party kicks so much ass on the DS. I just got mine and I have NSMB, MKDS, Worms: Open Warfare, Elite Beat Agents, Castlevania: Portrait of Ruin, and Phoenix Wright: Ace Attorney. Half of my games are 1st party. How many PSP owners can say that?
It is better to remain silent and be thought a fool than to open one's mouth and remove all doubt. -Mark Twain
2004 Lincoln LSV8 - ~$15,000
K&N Cold Air Intake - $300
Handheld ECU Reprogrammer - $400
The look on a ricer's face when they get their ass beat off the line by a Lincoln - Priceless