Mk Cap, page-34

It is highly unlikely IMHO they will get anywhere near this magical number of 440000 units.

By all accounts there were only about 600000 sold last year in the USA

People also aren’t buying their drones from big-box retailers like Target TGT, +1.21% or Best Buy BBY, -0.23% The majority of drones are purchased either directly from the manufacturer or dedicated drone dealers, Skylogic Research’s study found.

http://www.marketwatch.com/story/drone-sales-in-the-us-more-than-doubled