Xbox 360 selling 20% faster than original Xbox

[EvilAvatar]

X360

2,5 years -> 18,8M
4,5 years prediction -> 28,8M ???

The 360 will reach at least 35M at 4,5 years of life.
Better sales + bigger lifespan will lead to 40-45M X360 consoles at 2011's end against 24M Xbox 1.