And with Horseshoe set to have $500-a-spin slots, Maryland Live countered with a $1 million jackpot machine.Ĭasino gambling is big business - Maryland Live pulled in $58 million in revenue from slots and table games in July - and competition has reshaped the industry landscape. Last year Maryland Live opened a 52-table poker room, and Horseshoe announced it would host a stop on the World Series of Poker. The two have been competing for staff as Horseshoe sought to hire 1,700 employees at a time when Maryland Live was expanding. Horseshoe is not named as a party to the lawsuit, but Maryland Live calls the $442 million casino 'its principal competitor.' The rivalry extends in many directions.