When Jerry Jones bought the Dallas Cowboys they were losing $1 million per month and now it is the most valuable team in the world The Dallas Cowboys are now the world’s most valuable sports franchise, according to the most recent valuations by Forbes, but things weren’t always so great for “America’s Team.” Cowboys owner Jerry Jones was recently a guest on Adam Schefter’s podcast and he told a story about just how bad things were when he first purchased the team in 1989.