I'm interested in a PS4 Pro, but not in a hurry to get it so I installed an "Amazon price tracker doodad" into Chrome (Keepa, FWIW). Current price of the latest model (without the noisy fan that bugs people, apparently), bundled with Red Dead Redemption 2 is £384 - £400. Coincidentally it rose to that price 4 days ago after having languished at £350 for a month.
Biting the hand that feeds IT
