Dynasty League Hot Corner: Just what is a top prospect worth?

If you’re playing in any kind of Dynasty League, you probably have a strong tie with top prospects coming up through the ranks.  Chances are you have a farm system were you can actually draft and hold some of this talent and once they make their big league debut you can call them up in the same way the majors does.  But what are the odd’s of your next top prospect actually coming up, succeeding, and preforming well enough that he becomes the star player you hoped he’d be?   Should we value these prospects to the extent that we end up making bad decisions when some other owner starts barking up our tree about trading for them?  I’m just like everybody else; I love the next hot prospect coming up just as much as the next guy, but what are the success rates for said prospect turning into a future star? In order to gain some prospective we must go and look at past top 10 lists.  I would like to turn the clock back to the 2004-2006-2008 top 10 prospect lists.  I went every other year to ...