The Cowboys were worth $12.8 billion according to Sportico last year. Though it has been 30 years since the Cowboys won a Super Bowl, Jones has done well for himself–he paid $140 million for the team in 1989. The Los Angeles Rams ($12.7 billion), New York Giants ($12 billion), New England Patriots ($10.4 billion) and New York Jets ($10.35 billion) round out the top five. The Seahawks won the Super Bowl, then were sold at a hefty price, which benefitted everyone in the league. I don’t think the Cowboys have to win the Super Bowl to see it take a huge rise every year.