@JoshRoss: Some of the drawing tools in Word are impressive (particularly picture effects, etc.), but frankly I wish the Word team focused more on making it a more robust editor for long and technical documents. Word should be a light and simplified version of FrameMaker more than a competitor of Illustrator.
On the other hand, it would be wonderful if MS Word (and possibly PowerPoint, etc.) could import AI and PDF files and convert them to DrawingML. Or the Office team could make a drawing editor/importer program that works seamlessly with the other Office programs and keep the Word, PowerPoint, Excel, etc. simpler and lighter.