It's been some time since I read Cooper's book. However, there are some things to be said for familiarity. That's why I try to implement Windows standards in my applications. My applications work like others. It helps the user. You are correct, we don't need a save button, but it is another "Warm fuzzy".

Keep in mind, that alot of (if not most) "Windows Standards" were originally implemented by someone else long before MS. Who's to say we can't be the originators of a better approach?