Here's a DRF article with a more in depth discussion of how the sale went down.
Hyder Abad purchase. Hyderabad/Hyder Abad (depending on how they felt like spelling it that day) went for $400 as a yearling. That's around $10,000 in today's money. $30,000 would be roughly $775,000 today. Nice pinhook. From the article it sure sounds like the colt put on a show in a workout that made Keene scared enough to take it seriously.
Hyderabad/Hyder Abad apparently fell in the mud in the Futurity and nearly caused Domino to fall as well. Cooper seemed to think his colt would've won had he not fallen and the jockey spoke highly of the colt's effort before the incident. Something tells me it's not just blowing smoke up someone's arse. Overconfidence? Not sure, but I think Cooper believed it. Hyder Abad must not've broken down though because DRF's got at least one son I could find. Who knows who else because he clearly wasn't successful at stud. I can't figure out the breeding of the mare. The colt's name is Sheik, born 1896 out of Musical Gem by Dan Godfrey. Can't seem to find her dam's name.