@Kowenicki Microsoft have the finances to make risky moves , more so than Sony and Nintendo and considering the performance of the XBOX i'm pretty sure Microsoft would have wanted a console that would be outselling all it's competitors as opposed to fighting to stay out of last place.
Waiting to see how the consumer/competitor will react is a safer option but aggression earlier on in the generation with a low price point where the consumer is still making up their minds or have no clue about what is the most viable current gen console is would have been a real advantage to the 360.