PSP or DS? (Buyer's standpoint)

[CloudDragon]

Now this isn't really a thread about which one do you all think is better. I've recently come into some money (full time summer job) and I was thinking about investing in what the new handheld generation has to offer. While the DS stands more affordable and definitely has more titles out, there are a few games exclusive to the PSP (Crisis Core) I would love to get a hold. Also I know a little bit of the extent that you can pirate games onto a PSP but not a whole lot.

From a buyer's viewpoint and not a gamer's viewpoint, which do you recommend I get a hold of first? I fear this will turn into a debate into which one is better but of course that's purely preference.