Doesn't it look bad if they don't go over Pioneer of the Nile's fee? Empire Maker entered at $100,000. Ghostzapper went in at $200,000 though it fell relatively quickly.
I'll say $200,000 for AP.
Incidentally,
here is the stallion page of Pioneer of the Nile, who sired American Pharoah and Athens, the impressive (maybe) winner of the...Bangalore Oaks!