Studies (which I'm too lazy to look up, but I'm sure others can find easily) show that it doesn't cost that much more to make goods in the US and Europe, labor and environmental regulations and all
Actually a Slashdot article from last year says that's not true, it was more expensive in the US.
Now there's always more to the story. I'm sure the Google closed factory has lots of other reasons, and this being Slashdot I'm sure many people will point out to me how I'm completely wrong. And maybe I am. But my point is, someone tried it and came to the conclusion that it costs that much more to make goods in the US that its not worth it.