What are unboxing videos good for?

I guess there's a kind of ''living vicariously'' aspect to whatching an unboxing video, but I don't really get the point.

Is there really that much interest in knowing what the box looks like for a new phone or tablet? Or is anyone really concerned that it won't come with a USB charger or headphones?

Or am I missing something? What's the point of unboxing videos?

[Just for kicks, here's the 18-minute potato unboxing video from a while back. Still the best one I've seen...]