Yeah. I've considered that you could potentially hire a shipping container in the US, fill it with pinball machines and send it on a slow boat to Europe.
Don't know how much it would save on NIB Sterns, but I kinda fancied shipping across some old Gottlieb's. There are literally no copies of Black Hole anywhere on public display in Europe - at least, not according to the Pinside map.
That's the thing... outside of cities like San Francisco, middle-class Americans have more space, and money, to spend on stuff like pinball machines. They just have less money to spend on, erm, education and... healthcare. Personally, I think we've got the better deal on that one, but opinions on a pinball forum may vary!