Singaporeans may baulk at the record prices that luxury developments are fetching today, but a London-based businessman has shown that the well-heeled are willing to shell out good money for a top acquisition. The unidentified man has just signed a contract for a US$56 million ($85.6 million), 9,200-square-foot triplex penthouse in New York’s Plaza Hotel. That equates to around US$6,087 per square...