What exactly is the story of JBL not just winning the title in 04 but having it for so long? 

​I think for a little while he was doing it to troll the people who were so offended by the Nazi salute deal, and then from there it seemed to turn into a war of wills where Vince was stubbornly keeping the belt on him despite being the lowest drawing champion since Diesel.  Not to mention that Vince LOVED the character because it was basically Vince himself.  ​