have to also bear in mind that the PSP actually have a very long lifetime. Sony released the PSP in, what, 2003, and did not release their successor until 2011?/2012? for a handheld that is quite a long time
also the odds are that the 3ds will pass it because generally Nintendo maintains decent software for all of their platforms until the very last minute. I do also agree with a few posts that mention that the roms ability of the PSP helped in its sales. you can't even count the # of people trying to get rid of their older PSPs these days online who mention 'has roms of every such and such game!'. certainly it being one of the first handhelds with strong multi-media abilities helped a lot
at any rate sort of a weird thread to bring up considering that its competition in the same generation (DS) outsold it by like double. also awkard considering how terrible the Vita is doing. to put it in perspective, the PSP sold, what, 80 million, and the Nintendo DS sold like 150 million. in this generation the PSVita has sold 10 million and the DSi sold 50+ million. that's a worse ratio dramatically for Sony's handheld. I think it just points to the fact that if time were warped and you had PSP today it's as if it would sell that well. perfect timing and generation (sort of like the Wii in that regard)










