DEALS: $10 discount on RIGS for Playstation VR

RIGS: Mechanized Combat League is one of the launch titles for the Sony Playstation VR, and you can preorder it for $10 off from Amazon. Normally $49.99, if you preorder it on Amazon, the checkout price will be just $39.99 with Prime shipping.
RIGS will be released on October 13, the launch day for the Playstation VR.