Similar to what the US is doing in terms of mobile market, thinking that they are somehow representative or "advanced".

We get millions of headlines for Apple launching video chat in the US market while they had that in EU 5 and in JP 7 years back.

At the risk of sounding overly condecending, if there is something that "ze Americans" do great is selling their supremacy (ie. we are the best).

BTW: Thats a good thing as they tend to fake it till they make it.