This was my thought too:
What is the difference between a drone and a remote controlled toy?
What about those remote controlled helicopters/airplanes - are the sale of those going to be regulated because some people fly them in urban areas? What's the difference (legally) between a $1000 gas powered 10lb helicopter with a 5 foot wingspan and one of those $20 battery powered indoor helicopters you buy at Big-5 and fly for 1 minute/charge? (until you sneeze and blow it across the room)
20 years ago i had a model rocket that went several hundred feet in the air before spreading it's wings to come back down - no control whatsoever - is that more or less dangerous than a quadcopter being controlled through a remote link, or following a pre-programmed path?
What if I put a camera or some other payload on that glider - is it a drone now?
Is anything that flies without a human being on board to control it considered a drone? What about paper airplanes?