Pokemon 30th Celebration prices are crashing

Pokemon 30th Celebration singles are tanking after release.
Special Illustration cards are down 40 to 50%.
The rare Pikachu illustration cards are down over 80%.
Higher hit rates and too much supply are getting the blame.
One flipper says they grabbed over 2,000 from Pokemon Center, Walmart, Amazon, Target and Best Buy.

Flippers getting burned: best thing for Pokemon in years, or a warning for anyone sitting on sealed?