What is the lowest realistic expectation for lifetime sales of Wii,PS3,360?

[WiteoutKing]

I'm honestly pretty surprised at how optimistic these PS3 estimates are.

Independent Worst Case Scenarios:

Nintendo Wii: 40 million - Xbox 360 churns out third-party insanity and the PS3 suddenly comes alive, demolishing the competition in Japan. With no support from Europe or the other regions, progress slows rapidly. However, with that said, the momentum and the power of first-party titles will carry it for a few years before it finally kicks.

Sony PlayStation 3: 10 million* - (Honestly I'm being generous with this estimate, but...) Sony is detonating from within. If it doesn't pick up soon, the Xbox 360 will take all the "powerful" games and the Wii will take all the "lower-end" games. The Wii takes a 90% share of the Japanese market and the Xbox 360 spreads like wildfire across the States. Third parties drop like flies to each of the two other systems, and with barely any first-party material to speak of, Sony collapses. Add in that third parties are already abandoning ship after only 7 months and you have a serious situation. *Sony as a whole is suffering enormous losses on all media fronts. It is a distinct (though admittedly small) possibility that Sony itself could bankrupt.

Microsoft Xbox 360: 25 million - PS3 picks up and demolishes non-American markets, with the Wii picking up any leftover gaps that it hasn't already conquered itself. With third parties slowly leaning exclusives toward the PS3 and Xbox Live subscriptions slowly disappearing, the Xbox slips into a downward spiral.


Combined Worst Case Scenario:

Nintendo Wii: 80 million
Sony PlayStation 3: 10 million
Microsoft Xbox 360: 35 million


Expected Sales:

Nintendo Wii: 165 million
Sony PlayStation 3: 20 million (I feel like I'm being far too generous on this)
Microsoft Xbox 360: 65 million