[mbesto]

Large corps run financial scenarios usually in quarters (or sometimes monthly). You'd rarely see a CFO looking at a nightly simulation because you can't really make decisions at the level of a CFO that would affect the bottom line in the timespan of a day. While the types of tools to do more sophisticated planning models are getting better, the issue is generally not the tool or the planning model, but getting the data in, on time, and in a clean format.