The price is astronomical, but..
This device exists, it can be made, it has been made.
The price is high because people are willing to pay for it - Samsung has spent gazillions on R&D, fabbing and all the rest that they need to recover - but the actual cost of physically producing these things is I suspect pretty reasonable.
I can't see spinning discs ever beating this on capacity. They can shingle, they can fill it with Helium, but magnetic drives are now officially dead. I'm calling it.
I will not mourn their passing.