Seriously, anytime you feel like hauling out the "but Canon sells more!" argument ask yourself if Budweiser really is the best beer in America.
This is not a valid analogy. If Budweiser were $8-$10 a six pack instead of $8-$10 a case -- or whatever it costs -- the analogy would be valid. In the case of the Nikon and Canon entry bodies, the pricing is close enough to not matter. If the D3200 was $800 or more, I'd agree with your statement. But if Bud were $8 a six pack, nobody would buy it.
Now when Neuro says that Canon is leading because Rebels outsell the D3x, you'll have a valid argument.