There are only 12,300 20th Anniversary Edition PS4 consoles in the world, which were assigned via lottery and a mystery London pop-up shop.
They're rare as gold dust. They're highly prized. And one of them is now in CEX Fulham.
It's likely that whoever traded in the PSOne-themed console, which comes with grey detailing and a special edition DualShock 4 and Camera, probably could have made a bit more than the £750 CEX are currently offering for the Anniversary Edition. And then, assuming that this price wasn't set after the manager pressed a crisp twenty into their hands and walked away giggling. Thanks Geekspective!