I'm glad they put together the bundles before the next-gen launch... remember in mid 2013 when PS4 had 5 bundles SKU in the TOP30? They reorganized to better.

Yes, and we don´t know the difference on any case.

But I was talking about adding 999 units to your chart and than see the minut-to-minute sales then estrapolate those ratio to a regular supply situation.

So it only got 4/5 months right. November was wrong.

Let's say it got December wrong too. You'd say you could exclude that because "holidays".
Or let's say it got January wrong. You'd say you could exclude that because it's "right after holidays"

4 data points after you've excluded 1 for an arbitrary reason is not good data and doesn't show reliability.

These old consoles didn't shows in the TOP100 so I can't check...

Except for the fact that we have YEARS of data of this not being the case. For example, at one point in one december Gamecube was on Amazon's best seller list ahead of the Wii, 360 and PS3.

It of course did not chart on NPD.


And of course... We've got Amazons words themselves.

The Amazon Best Sellers calculation is based on Amazon.com sales and is updated hourly to reflect recent and historical sales of every item sold on Amazon.com.

"While the Amazon Best Sellers list is a good indicator of how well a product is selling overall, it doesn't always indicate how well an item is selling among other similar items."

http://www.amazon.com/gp/help/customer/display.html?nodeId=525376

I think it depends on how big is the disparity in the best seller's list between the PS4 and XOne. If it's small, we don't know for sure which system has outsold which. However, if it's a huge disparity, then it's plausible that for sure one console has outsold the other.

November was not wrong.

When I checked the overall 2013 sales in the first week of December it showed PS4 > Xbone that means that the launch in November was bigger for PS4 than Xbone.

The ranking shows Xbone > PS4 in November because the preorders... you can loock that the PS4 SKU is in the TOP30 in June, July, August, September, etc.

No arbritary... preorder.

Look:  http://www.amazon.com/gp/bestsellers/2013-07/videogames/ref=zg_bs_tab_t_bsar

PS4 #5 in July

In November you can't buy a PS4 at Amazon anymore because all the stock was already sold in the previous months.

he's not looking at the hourly charts.   he is looking at the monthly charts.  a monthly average is bound to be more accurate than an hourly average.

Can you check this same example using the Monthly chart, please.

Except it's calculated the same way.   It's not actual total sales.