Would this theory be more killer?.....Killin' me!
3DS sold more units than either X1 or PS4. Yet 3DS handhelds are always well stocked. Lots of units in lots of different colours.
So with tons of stock 3DS units don't sell and the every NPD report that shows 3DS selling the most hardware (practically every NPD report) is a total lie? Trust me. Go to any WM, Costco, Best Buy and grab your phone and take a picture. I bet there's lots of boxes lying around.
Just something to think about. LOL