It won’t cost that much, because most people wouldn’t pay that much. Economics.
It’s not inconceivable, assuming that it’s comprehensive (multiple cuts, all old special features). Look at the 6 film Middle Earth set- the MSRP is $800, but they’re “discounting” it to $400 because literally no one would pay that much.
Why would anyone pay 400 dollars for that?
They wouldn’t. I’m just saying that studios do, at times, price these things absurdly high.
Obviously they have because it’s still for sale, now at $500.