Microsoft Just Declared War on GameStop

Fool: Earlier this week, Microsoft announced that it would begin experimenting with digital game discounts. If you own Microsoft's latest console, the Xbox One, for a limited time this month you'll be able to buy a digital version of Ryse: Son of Rome directly from Microsoft's online marketplace for just $40.

This is such a tremendous blow to GameStop's business model that it's difficult for me to overstate the matter.