Brief snippet from a las vegas sun article (full story
here)
The Harrah's study also included a separate survey of players polled during the World Series of Poker tournament at Binion's Horseshoe in May, the first year Harrah's has owned the tournament. Ninety-five percent of professional poker players are men and 98 percent of amateur players are men, according to the poll. Sixty-six percent of professional players said a nonsmoking environment makes a great poker room compared with 76 percent of amateurs.
More than half of World Series of Poker players gamble at other casino table games. About a quarter of players also play slots and make sports bets.
The pros said they have played poker for an average of 24 years while amateurs have been playing for an average of 23 years.