why popularity matters
There is some disdain for the herd mentality. Maybe in terms of cultural tastes, there is a point there. I think majority opinion is important b/c it represents the wisdom of the crowd. Collectively, we stand a better chance of finding the truth than singly. This isn't just socialist bullshit. It's a fundamental reason why stock markets work, gambling businesses turn a profit, anything that relies on information, etc.
http://www.randomhouse.com/features/wisdomofcrowds