Vietnam's wealthy population has shown a growing interest in the consumption of expensive and rare crabs, including the king crab, Tasmanian crab, and Shanghai hairy crab. These crabs are renowned for their taste and high price, with the king crab selling for 1.9 to 2.8 million VND per kilogram and the Tasmanian crab reaching up to 60 million VND for an 8kg specimen. The Shanghai hairy crab, despite its small size, is sold for 900,000 to 1.2 million VND per kilogram due to its unique taste and texture. These crabs are highly sought after by the wealthy class in Vietnam for their distinct flavors and the status they convey.