What made Microsoft succeed where Sega could not?

[zorg1000]

NightDragon83 said:
So what I learned from this thread is that... M$ is good at making money, and SEGA wasn't.

Yup, sounds about right.

Oh... and M$ never released expensive add-ons for its existing consoles as stop-gaps between generations, nor did it decide it was a good idea to release a console months ahead of its officially announced release date with no games.

You could argue that Kinect was an in between generation add on. In 2009 sales of 360 slightly declined from 2008, if not for Kinect its very likely it would have continued to do so in 2010 and 2011 instead of those being its peak years.