Uhh... Stu? PSP is hardly similar to PS1 and PS2 in any way.
As for personal interests, that doesn't work. If someone wants a PDA that's just a PDA, they can buy one. If they want one that's wireless, they can buy one. If they want one that's also a phone and digital camera, they can buy one. Choice.
If people want to buy a PSP that plays only games, they can't buy one. They must buy everything else that's thrown onto it. No choice.
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