Ryngy...You forgot the New 3ds release(not standalone but a bundle with animal crossing happy home designer)... :P
3DS sold 77k in August )down from the 108k of July...
There was a reason,not a negative one as many thought with an unfathoming ease and doomed 3DS,but most probably the anticipation of new 3DS...3DS had sold 75k in January,one month before New 3ds xl release!:P
So you omitted including that in your opening post and all of people now have predicting for 3DS ignoring this particular detail!:P
My bad. ;)