Yeah...the Mets originally drafted Roger Clemens out of high school in 1981 and decided he wasn't worth it after he asked for a $25,000 signing bonus (the Mets exec, Lou Gorman drew the line at $20,000). He went to college for 2 yrs. and the rest was history.
Also, the Braves originally drafted some guy named Randy Johnson, but he decided to go to USC. I wonder what he's doing now?