Foods that have changed status from cheap to high-end

This cheese that looks like tofu
It is made from sheep milk:
Even in the Roman era, there were no dairy cows because it was a time of quality improvement.
Because the precious calf had to eat milk.
It is said that the milk used to make cheese does not come from sheep or goats.

Unlike modern times, egg sushi is devalued as the cheapest ingredient in sushi restaurants.
In reality, there is no bisan sushi before the Edo period.
The cost of eggs has increased due to mass production in modern chicken farms.
The price goes up and it becomes cheap.
The price of fish has risen and it has become expensive.

Heungeosimhapdo is actually
To eat all the precious boiled pork
Instead, they gave me a cheap snack so that I could eat this.
Conversely, while pork prices have fallen,
The price of popular fish has risen tremendously
In order to eat the precious heungeoreum, it is served with a cheap pork cutlet.
Identity reversed: