They sold for millions of dollars even though they hadn't even run a race. In the thoroughbred business, good bloodlines means big money for breeding, if not for racing, investors are known to snap up horses who count racing legends as relatives.
Some of the thoroughbreds in the slides ahead eventually went on to win races, but others were used to breed future generations of racehorses. Click on to learn the highest prices paid for thoroughbreds at auction.
By Joseph Pisani
Posted Oct. 15, 2010
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