Hmm, that kind of thinking seems to contradict what happened to Sony and the PS3 at launch time. It took what, 2 years before the PS3 started selling decently because the price was so stupidly high and no one was going to shell out 700 dollars for a gaming console even if it does last 10 years. Even now the PSP and PS3 are both more expensive then their direct competition (DSi and Xbox 360), though the non-Go PSP units are about the same price as the DSi XL. But price does matter, and it's something they need to understand. The PSP had a pretty poor life span in terms of overall sales figures, low game sales numbers, insufficient development interest by both 1st and 3rd party developers and the number of games that came out for it is a testament to how much of a failure it was in comparison to the DS line. I mean, 60 million or whatever is a blip on the map compared to the 140+ million units of the DS in all it's iterations combined sold, Nintendo still sold 2.5x as many units over 5 years and they didn't have all these really high graphics quality games either, they had games people wanted to play.
Sony like to screw themselves, and will once again shoot themselves in the foot with the NGP if the price is once again almost double the 3DS price. And the cost of the system itself will reflect the game development interest, as has been proven time and time again, it's not the power of a system that makes it great, it's the games, and people will have no interest in spending millions of dollars to develop games for a system that isn't selling well right at launch due to it's high price tag.