> The USA has economies of scale that Europe still does not have.
If anything Europe has larger economies of scale. EU population alone is 446 million and that's not including countries that chose not to be part of it.
Translating your product into 30 different languages is pretty expensive, as is finding local representatives who know their markets and can advertise efficiently. Americans are much more culturally alike to one another than they are willing to admit.
And from the standpoint of e-commerce, shipping charges across Europe are expensive compared to the US. We do not have any common, reasonably priced service similar to US Post. Sending a package to Spain will cost me more than twice as much than sending it within borders of my own country, and the delivery will take several days.
If anything Europe has larger economies of scale. EU population alone is 446 million and that's not including countries that chose not to be part of it.