Few perks in fast food are as elusive and sought-after as the McDonald's Gold Card, which grants its holder free meals. However, the benefits of these cards can vary. While some are limited to local venues, others, like the one Bill Gates has, allow him to eat for free at any McDonald's globally. Warren Buffett, another notable recipient of this privilege, discussed his own McDonald's Gold Card during a 2007 CNBC interview, revealing the more localized nature of his card. During an interview wit