Views default overriden

I've been learning and playing around with Views2 for a while now and have been wondering what use anyone would have for the default view other than the obvious.

The obvious: If you have a number of similar views you can save some time and work by inheriting most of the fields, filters, sorts, etc from a default view. Or you later make a change to one view that you want to propagate to other views without having to manually update each one.

Does it have a use beyond that? If so it's not at all obvious.