Which product holds the Guinness World Record for the most expensive launch campaign in history, costing an estimated $500 million?

Product launches can make or break a company's success. Some brands go all out, creating spectacular events that capture global attention and set new benchmarks for marketing expenditure. This trivia question focuses on the most expensive product launch campaign ever recorded in the Guinness World Records. Test your knowledge about retail history and the extraordinary lengths companies will go to ensure their product makes an unforgettable entrance into the market.

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Apple iPhone X (2017)
Microsoft Windows Vista (2007)
Samsung Galaxy S4 (2013)
Sony PlayStation 3 (2006)