Despite the clickbait title, I’d like to propose a serious answer to this question, rooted in the text. My discovery surprised me, so I thought readers might enjoy it as well.
To start with, silver money, kesef, is used as a means to connect with others. After all, unless someone else wants it, money is entirely useless! Money facilitates relationships that involve the core elements of a free market: a buyer and a seller voluntarily exchanging money for other things. Thus silver (the first times it is mentioned in the text) means wealth (Gen. 13:2), the means to purchase (17:12-13,24,27), and a peace-offering between people (20:16). In a verb form, money is even translated as “longing for relationship” (31:30)
Where it gets really interesting is when the text refers to “hundred silver.” Because this happens in precisely four examples in the entire text, and each one is a different number! There is one example of 100 silver, a verse telling of 100+100 silver, one verse that has 300 silver, and one story that mentions 400 silver. A nice progression, and no coincidence!
Here are the examples:
100: and they shall fine him a hundred silver, and give them to the father of the girl, because he has brought out an evil name upon a virgin of Israel: and she shall be his wife; he may not put her away all his days.
100+100: And of the hundred talents of silver were cast the sockets of the sanctuary, and the sockets of the veil; a hundred sockets of the hundred talents, a talent for a socket.
300: To all of them [Joseph] gave each man changes of clothing; but to Binyamin he gave three hundred pieces of silver, and five changes of clothing.
400: A piece of land worth four hundred silver—what is that between you and me? Go and bury your dead.” Abraham accepted Ephron’s terms. Abraham paid out to Ephron the money that he had named in the hearing of the Hittites—four hundred silver at the going merchants’ rate.
What is the meaning of this?
I think they are all references to the ultimate purpose and meaning of silver: creating connections.
100: The girl who becomes a wife represents the core building block of all of civilization (marriage being an institution, this is not merely animalistic mating – the man must keep his wife). The value of a wife is the value of the family, of perpetuating a family, a community, and the entire world. A woman, a wife, is the biological and spiritual building block for everything. Her value is the foundational number of 100 silver pieces.
100+100: the tabernacle is where man and G-d coexist. The sockets of the tabernacle are specifically for connection points. Man and G-d are equal partners in the tabernacle, so they are each 100 silver pieces.
300: Positive relationships with brothers. Unlike marriage or religion, man is not instinctively drawn to positive and constructive relationships with natural competitors (see Cain/Abel, Isaac/Esau, etc). Loving our brother is much less natural than marriage, because loving a brother requires us to overcome our natural instincts. The nation is built on a positive working relationship between two brothers, Moses and Aharon.
400: This is the first purchase of the Promised Land, creating a lasting legacy and posterity for all the people. Our connection to the land builds off all of the others – in order for Jews to thrive in Israel, we must have deep marriages, an abiding connection to G-d, and brotherly love. Note, too, that the number “4” is the number of foundational changes (40 days and nights of the Flood and Sinai, 40 years in the desert, etc.) Jews in the Land of Israel represent the ultimate connection, between people and between man and G-d.