Wow…it seems that Target is running a deal on the Core PSVR Headset. Normally $399, but if you have the Cartwheel app, you can save an additional 15% which equals out to be around $44.85. If you don't want to deal with Target, it looks like Amazon is pretty much price matching The deal.
So if you are looking for a deal, the time may be now as this deal expires on August 19th. Still the best deal is the launch bundle that includes the Headset, the two move controllers, camera and PlayStation Worlds all for $499.99.