PSP and PS2 will both remain viable platforms for a while, but nothing like PS3 and 360 (PS2's better for the time being, but it will fade).
While the difference between $300 and $600 is huge, the difference between $250 and $150 is not so much.
The original Gameboy sold 33 million units in Japan. There was more to that than what we would consider stereotypical market segments.
Sega doesn't have too many believers left, regardless of the franchise. They have some very nice brands but need to find a publisher capable of leveraging those brands.
PS3 is fighting an uphill battle (moreso in the US than in Europe and Japan), but it's hardly impossible. They sold in excess of 40 million units here the past two times.
I personally think the price of both the PS3 and 360 need to come down, though I do view the PS3 as the better value and the more appealing library.
Sony still has the support they gained during the first two consoles. We're seeing this in terms of both developers and current PS2 sales.
When GTA3 launched, it had a userbase of 4 million to work with. It went on to sell 6 million copies.
If Wii demand grows, what will it grow to? 1.5 million a month? 2 million? 8 million? Maybe they can sell 100 million systems this year. Or maybe even by the end of the summer. Maybe by tomorrow even.
