What I've gathered over the past year (e.g. press coverage of documents uncovered during these proceedings) is that the Xbox ecosystem is falling behind Sony by

What I've gathered over the past year (e.g. press coverage of documents uncovered during these proceedings) is that the Xbox ecosystem is falling behind Sony by quite some margin. This is presumably just to protect the business they already have, by scaling out and adding IP and content. They need it for customers to keep coming to Xbox.