I can sum up why the sales are up in five words "Mommy, I get video game?" It's probobly true, like you said, they're aimed for lower age groups, I think that another reason is because of the cost. The DS is about $100 less than the PSP's core pack(about $200). And one last reason is Nintendo Fanboys. I chose the PSP because it can play SNES, NES, Genises, almost any sytem. I have both, I use my PSP A LOT more than my DS, I mean I havn't even touched it in over a month, it's not that it's a bad system, it's just the PSP is juse a lot better in my opinion. It can do everything I want in one little PSP. The things I like better about the DS is the cartridges (I hate how the PSP has those UMDs, they scratch WAAAY to easily), cost, Dual Screen, a lot more durible, the touch screen, and the fact that it closes and acts kinda like a screen protector. The things I like better about the PSP is homebrew, bigger screen, music, movies, better graphics, photos, internet, and upgradeable memory. Seperate, neither are perfect, but together, they would rock, plus that'd shut everyone up about the Sony stole Nintendo's whatever stuff. I would spend a lot on a system with all the pluses of the PSP, and the pluses of the DS all in one.