My girlfriend and I are from Europe and we have been in the US for a year now while she finishes her university degree. Half a year ago she (we?) got pregnant, and we are paying more than triple the money for doctor visits than it would be back home. Not only that - but the money we're paying is just 20% of the "real" cost, the insurance she paid $7000 per year for is paying the rest. So we're paying $180 per visit and the "real" cost of each half an hour long doctor visit is about $900!
Now you might argue it's better service, but in my very subjective view, I highly doubt it and it doesn't feel like it at all. To add insult to injury: We got a 3D sonogram and the amount we paid (mind you, 20% of the "real" cost) was twice the amount our friends at home have paid for 3D sonogram taken by a private company (and the government is not paying a cent).
IMO, America is one fantastic country if you're rich - but it seems much much harder to live here than in Europe on meager salaries.