3d views need the ability to "duplicate as dependent". We use dependent views frequently for views that must be on several pages, so that a change in one place is a change in all. This isn't an option for 3d views, requiring greater management.
For example, on a project with early release packages there are multiple cover sheets, one for each package. Several of them need the exact same cover image, but there is no way to ensure that the views aren't different between sheets.