FedEx'ing Luggage, instead of checking-in

I heard about this during the Oscars. You know how you see photos of celebrities in the airport, but without luggage? From what I've heard, many are now sending their luggage in advance through FedEx, so as not to have issues with lost bags in baggage claim!

Up-side: I imagine that dealing with photographers, fans, etc...it's probably easier to move around without big suitcases.

Down-side: Packing ahead. Plus, it seems a little wasteful.