The correct answer to this open question is the following.
Remote Pacific islands like Guam and Samoa provide value and many benefits to the United States.
These Pacific islands are places that have natural resources and raw materials that can be used in the United States by big companies, manufacturers, and industries to process raw materials and produce goods.
Another positive thing of owning a Pacific island is that the US can have a navy base there, as the base in Guam that is located in Apra Harbor. This base is home of Commander Submarine Squadron 15.
Another good reason for having touristic islands is that they can serve as a touristic place where companies can build hotel, resorts, and attractions that generate money.