Caesars, FanDuel, DraftKings weigh customer acquisition against profits

Sportsbooks have spent billions of dollars on marketing to attract new customers. FanDuel controls a leading 47 percent market share. Many of the other sportsbook operators are under pressure to become more cost-conscious. This fall, would-be gamblers can expect to see skimpier promotions and fewer sportsbooks advertising on national TV. In Europe, where sports gambling has been legal for decades, operators spend 15 to 20 percent of revenue on Marketing. in Europe. Americans have placed around $150 billion in regulated bets in the four-plus years since the Supreme Court ruled that states other than Nevada were free to establish their own sports betting laws.