Both Asus and Google have announced a price protection program for those that bought a Nexus 7 within a specific time frame, before the price drop. First up is Asus. They’re offering UK customers that bought the 16GB Nexus 7 directly from either Google or Asus a ₤25 refund for those who bought one before October 29th. You must register your device with Asus and also provide a proof of purchase. You must also do so by November 30th. Next is Google as they are offering a $50 refund towards your account for those in the U.S. that purchased the 16GB Nexus 7 on or after October 14th.
source: The Verge