A question about Royce Gracie?

Royce Gracie was once asked why Gracie Ju jujitsu was dominating the world of no rules fighting, (at the time, it was) He said the answer was quite simple, its not actually because Gracie Ju Jujitsu is so much better then anything else, its simply his family has been training in and doing no rules fighting for over 80 years, they practically created the sport, they know what works and what doesn't. They have a huge amount of experience that others just could not match.