Remember, unlike Australia, and the U.S. in New Zealand they can breed 250+ mares if they want to in one year. In fact, Sweet Lou did over 250 down in NZ.
Interesting that they would stand him here, as the math if they take him to NZ is almost a no lose proposition:
Breed 250 mares $ e.g. $7,000 for $1.75mm/year for three years. If he produces, then they have a goldmine; if he is a dud, they got their money back if you net out expenses etc.