I try and use the Office drawing tools or the drawing tools in OneNote (no grouping of shapes, ug!) and always go back to Visio because it's faster and easier. I know I don't use more than 10% of Visio's power but I'd like Microsoft to keep it (or its drawing paradigm) around for awhile. It would be nice if Microsoft unified Visio basic drawing + Office drawing + OneNote drawing into all of their Office apps someday.