PS4 and ONE. The wisdom of 33 countries versus 13.

[ICStats]

Wouldn't have made a huge difference IMO since the "13" countries cover the same largest markets.  The remainder is I think just a 5 to 10% difference.

Sony has shipped a lot of stock to both US and Europe which are both important. The only reason MS has more to sell in US is because they are selling far worse in Europe.