The stove you bought that lasted a lifetime costs, say, $600 to construct and distribute, and $1,000 to buy. And you didn't even need a factory because it's a stove. The initial costs are at about $5,000 - $10,000 for your stove-making business. And if you sell that stove, you can never make use of it again.
The game you bought costs, say, $5 to "construct" and distribute, and $60 to buy. However, it costs $20,000,000 to design. And once you've played it, you probably have no need to do so again, and lose very little from selling it. It's like selling a book except you don't even lose an item for your library, you just lose a box containing a disc that won't even work in 20 years.
The principles of economics break down because of how digital goods are made and distributed. Adam Smith would have written some footnotes & exceptions for intangible goods if he lived long enough to see such a thing.