In the past, consoles all fought for the same market share. Many people had multiple consoles. Now, when the market is at it's biggest, the Big 3 have each chosen a different audience. Sony is a differentiator, they charge the most, but they promise the most in depth experience. The PSP falls in this category. It's success is questionable and may a sign of things to come with the PS3. Nintendo is a cost-leader.