Is it cheaper to travel than live at home?

A common lament I hear is, "I'd love to travel. But it's just too expensive." How much money do you really need to travel year-round? Would you need $50,000 year? Maybe $100,000? Nora Dunn from The Professional Hobo answered that question in her classic article: Travel full-time for less than $14,000 . In many first-world...