Avengers: Endgame had a budget of $356 million USD and you could buy a bluray of it for $40 on release, or stream it for a monthly fee of $12.
Demon's Souls is a remake of an 11 year old PS3 game (originally made under a budget of $10 million dollars) using a lot of the same code but with a new budget of anywhere under $100 million for graphical and technical enhancements selling at a retail release of $70 on PS5 (or $90 if you opt for the exclusive items in the deluxe edition).
The most expensive video game ever created was Grand Theft Auto V at $265 million. For reference, the budget of Thor 2: The Dark World was $170 million. Yet somehow, the Hollywood movie industry manages to make billions of profit despite costing twice as much to make, half as much to purchase, and without any sort of additional microtransactions to buy to, I dunno, unlock Ghost Rider in Avengers: Endgame. And weirdly enough, the video game industry is the most lucrative entertainment industry in the world despite the apparent crippling development costs that seemingly justify a price increase.
There's absolutely nothing justifying games costing $60, let alone $70.