andEfforts were made to include the camera at the US$399 mark, but pressure from above forbade Sony Computer Entertainment from making too much of a loss on the PlayStation 4 hardware.
http://www.businessspectator.com.au/article/2013/10/8/technology/sony-plays-ps4s-fanbaseHouse is prepared to "adjust messaging" over the time indicating that Sony may bundle the camera with every PlayStation 4 further down the track when it is ready to target a wider audience.
There may some other interesting bits in there.