Where's the pie chart for "games you want to play (per platform)"? Pretty sure it'd be a more even split. There is SO much garbage on the DS, almost as much as there is on the Wii.
It's really baffling, because it's not as though there's no market for PSP. Sure there are only half as many PSPs as DS systems, but it's no mean feat to even pull half the numbers of the DS. But for some reason, PSP s/w doesn't sell. I find it hard to believe that everyone has their PSP hacked for piracy, or even that all hardcore gamers are pirating most of their software... but PSP games just /don't/ seem to sell at all.