I'm willing to bet that those that disagree with the 1500 hour rule are those who have not yet acquired those magic numbers. And those who have the necessary experience probably realize that those hours do count for something. Kinda like people without a university degree that say "it's just a piece of paper", yet those of us who have a degree know that it amounts to more than 4 years. Sometimes the sum of all the parts equal more than their number.