@SupaPhly part of the reason could be that they are more responsive to FOREX fluctuations than MS or Valve. The other reason is that we are so small for Sony that they can't be bothered to match what happens on the other platforms.
If you have both consoles it allows you to price shop, i've picked up a few games this way.
Store availabilityIn Stock Normally dispatched in 24 hours
DiRT Rally (PlayStation VR Compatible)
In Stock Normally dispatched in 24 hours
The new version lets you drive in fully immersive VR throughout the entire game supporting every car, every route and every discipline within DiRT Rally.
As well as allowing you to drive any of the stunning rally, rallycross and hill climb cars in full VR, the update to DiRT Rally will add a completely new Co-Driver Mode to the rally sections of the game. This new feature allows a second player to become engrossed in the action as they use the buttons and touchpad on a DUALSHOCK 4 to give the pace note calls to the driver from the social screen. Just like with real life co-driving, timing and accuracy are vital in order for you to complete the stage in the best time possible.