How the PS4 on it's own is still charting is incredible.
With regards to people talking about online vs retail, the reason we accept Amazon monthly sales as being generally console accurate is due to statistics of sample sizes: http://en.wikipedia.org/wiki/Sample_size_determination
Amazon's chart represents a sizeable amount of sales, and as such we are able to determine that the sales trend will be similar across the region.
BF does alter this a lot with massive increases in both online and retail shopping but the same reasoning should work through(high percentage, although not impossible to be wrong)
If A > B in Amazon, one of the biggest 'stores'
Then A > B across every other store
But of course we will need to see the final Nov stats from Amazon to see who is A and who is B
Edit: This link is better - http://en.wikipedia.org/wiki/Sampling_(statistics)#Probability_and_nonprobability_sampling
