Once the gee whiz feeling wears off you'll be looking for something else.
Funny, as that's exactly what almost everyone I know who bought an XBox 360 has been saying lately. Bottom line, the 360 has yet to have a single game I'd want, apart from three I can play better on PC. In a few more months, they'll be cheaper and they'll have some new, more reliable hardware inside them, so if they've actually got any games I want by then, that would be the time to get one.
Not interested in any other consoles, as I have no interest in doing homebrew myself, I just want to be able to play other people's stuff on my PSP, but looking at all the information which has been offered, it looks as though this is not possible without a lot of workarounds and patches or by ditching the new games. And I'm wayyyy too much of a Syphon Filter fan to ditch that.
I'll have to reconsider if I still want a PSP just for the official games, or if I'm prepared to buy two of the damn things. Thanks for all the information, guys.