I think it's just what happens when something genuinely great comes along. Some people try it and enthuse about it. Sometimes other people who haven't tried it assume that it's just like all the other average things and therefore the only explanation is irrational fanboyism.

We saw the same thing with the iPhone. It was a step change from previous phones. Loads of people were like "it's just Apple fanbois, I'll stick to my N95" without even trying it.