Hotel Mode - fully agree with you. The main point in your comment is "right route". A full a380 is definitely worth it. What's sad though is that (ignoring Emirates) an airline could easily do with a couple of a380's, if any, because most airlines see the empty seats as a loss and dont require so many on different routes.
For Airbus, i think it was a historic plane that certainly changed aviation, but from a business perspective hasn't made much sense so far.... Still hope they keep it going though.