I ask the question because while everyone is looking at Sony's competition to understand why it is "struggling" in the next gen console race, I think Sony can look in the mirror to find their answer.
Microsoft took a lot of heat for quietly discontinuing its support of the original Xbox. They seemed to think that supporting two consoles was not beneficial to their business, even though the black box had a lot of life left in it. Looking at the success of the 360 since that decision it is easier to say that they were right.