What is the most successful marketing campaign for a shite product in the modern era?

Convincing Americans to pay a higher price for boneless, skinless, flavorless, chicken breasts instead of the dark meat?

Convincing women if their fiancee didn't spend 3 month's salary on an intrinsically worthless and common rock, that he didn't love her?

The pet rock?

"Give us all your personal information for free, and update us on your purchases and preferences voluntarily so that we can sell your personal data for money"?

Its appropriate to drop $3,000 or more on an elaborate wedding dress you will only ever wear once, then also fork over $300 and we'll preserve that dress like an Egyptian Pharaoh for no discernible reason?

You should pay $5,000 or more to embalm the body of your dead loved one, because.... reasons?

EDIT: Buy organic because we use different pesticides which are labeled 'organic' but actually kill you just like the other ones. Plz pay 120% more, kthnx.

What are other totally useless or shite products/services that for no perceivable gain or logic, we inexplicably must buy? What's the most flawless takedown any industry has made over our collective wallets?