Some of AMD's Ryzen chips already received price cuts over the holiday season and this reduced pricing is now permanent. There are some hefty cuts in here, the Ryzen 7 1800X for example falls from $499 to $349!
Here's a quick overview of the new pricing:
Threadripper 1900X: $449 Ryzen 7 1800X: $349 Ryzen 7 1700X: $309 Ryzen 7 1700: $299 Ryzen 5 1600X: $219 Ryzen 5 1600: $189 Ryzen 5 1500X: $174