I guess it's Sony's turn to be lucky with their tech decisions. Sony bombed hard on Betamax tapes, they failed to get UMD going outside of PSP, Minidiscs failed hard, Blu-ray won, but it came right at the end of the physical media era.
Finally Sony backs the right horse with GDDR5. Strange that quite a lot, to date, has turned on the decision about what sort of RAM to use. Sony hasn't won anything yet, but the RAM decision giving Sony a more powerful unit (in the box), a smaller form factor, a sexier box (I called that months ago, Sony would have the sexiest looking nexen machine) and a cheaper price point (Kinect is probably a much bigger factor here though) gives Sony a lot of advantages leading up to the launch.
Even the Sony haters have to admit Sony's done a damned good job up to this point. The one criticism people had (not showing the box at the Feb event) is an irrelevance.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
