A tad unfair I think. For one the advent of the Wold Wide Web means it's a global market now. When I sell stuff on eBay it goes all over the world. I've sold soul 45s to Europe, the Far East, Australia and yes, even the USA.
Also, why should somebody's location preclude them from getting the best price for an item. It's not unknown for people in this country to sell antique furniture, for example, to the States as you can get a better price there.
The fact that US citizens are aware of the value of soul 45s nowadays is just part of the price we pay for having access to many more records.
You only have to look at how many of regularly buy from America now compared to 20 years ago.
We can't have it all our own way mate
Godz