Which product launch is considered one of retail's biggest flops, losing approximately $100 million after extensive market research suggested it would be revolutionary?

Product launches can make or break a company's future. While many successful products dominate headlines, some highly anticipated launches have become legendary failures despite massive investment and marketing. This trivia question explores one of the most expensive product launch failures in retail history—a cautionary tale of market research gone wrong, overconfidence, and the high stakes of new product development in the consumer goods sector.

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New Coke (1985)
Crystal Pepsi (1992)
Touchpad by HP (2011)
Clairol's Touch of Yogurt Shampoo (1979)