It's good for the economy ! "In the United States, about 190 million Valentine's Day cards are sent each year, not including the hundreds of millions of cards school children exchange. Valentine's Day is a major source of economic activity, with total expenditures in 2017 topping $18.2 billion, or over $136 per person." Andreano, Caterina; Shapiro, Emily (February 14, 2017). "Valentine's Day by the numbers". ABC News. Retrieved February 13, 2018. John Roach. "Valentine's Day Facts: Gifts, History, and Love Science". National Geographic. Archived from the original on March 4, 2016.