I was reading a news article today and in the midst of it was this sentence: "In less than a year, Estes-Cox Corp., a Colorado maker of model rockets, has sold more than 500,000 versions of its remote-controlled nanodrone, which is 1.8 inches square and retails for $40" The article wasn't about Estes or even about quadcopters, which gives the number more credibility, IMHO. That's a LOT of toys!
