You know how they sell Krispy Kreme Doughnuts at the Line 1 platform entrance in Suwon Station?

When I pass by around 6 PM,
there are literally mountains of doughnut boxes piled up.
I thought to myself, "Aren't those the popular doughnuts?"
"They must be failing since they're selling them piled up on the street instead of in a proper shop..."
That's what I thought.
But when I passed by that same spot again around 10 PM,
all those doughnut boxes were gone.
So I thought, "I guess they actually do sell well even if they sell them like that..."
But apparently, this is actually Krispy Kreme's strategy. Wow.