What are the top pros worth?

[Salmo Trutta]

I know this is probably going to end up being a bunch of rank speculation, but what do you guys think some of the top pros are worth?

On HSP the other night, they played a preview of Doyle talking about next week's episode where the buyin is a $500k minimum. He said that everybody in that game (presumably including himself) was playing too high except for that billionaire Guy Liberte, and that got me to thinking about how much Doyle, Ivey, Reese, and some of those other pros are worth.