XBO sold at an average price of $258 in July compared to $298 in June and the PS4 at $351 in July and $352 in June
And only outsold PS4 by 10k in July! LOL! Anyway, last-gen hardware in same time frame ( July 2008 ) :
DS 608k
Wii 555k
Playstation 3 225k
PSP 222k
Xbox 360 205k
Playstation 2 155k