Bourbon County, Kentucky - Arthur Hancock, a fourth-generation thoroughbred breeder, pointed out his office window on a recent morning to illustrate a fundamental difference between horse racing and casino gambling. A shimmering copper sun was rising over his 1,800-acre bluegrass farm. A clutch of lithe prize ponies grazed under a gunmetal sky. "Look out there," said Hancock, 64. "This is a whole different world."