Pete - the market isn't considered in terms of territories - 250M and 60M is 310M. The market is global. The massive price differentials are simply profit maximisation. Manufacturers and dealers will sell at the price they consider the market will bear - the other complications are relatively minor and certainly don't equate to +80 or +100% differentials.
Mark was bang on the nail - it is difficult to sell 'specialised' consumer goods in the UK (and some other European countries) if you get the price point wrong. The market's attitudes have far more bearing than the import taxes, costs of sale etc.
The US are worrying about European attitudes crossing the pond - already in some parts of the US 'reversed cost awareness' (price snobbery) has a strong foothold.
Consider ladies' perfume. The costs of manufacture are stunningly low - indeed most 'up-market' perfumes spend far more on packaging than product. Specially moulded glass, metallic inks, high-grade card, velveltine liners etc. However - if you tried to sell such a product at £4.99, you'd bomb. £49.99 - you're away. It's all about perceived value and consumer psychology.
De Walt, for example, are good tools, but they aren't the absolute be and end all. Some of the range isn't up to much at all, as you'll read in other threads. Yet the prices would suggest they are. That's their marketing strategy, and it works. They even picked the most distinctive colour scheme possible in order that the eventual buyer can 'be seen' with a product of the correct perceived value.
Before anyone leaps at the huge difference between perfume and power tools, let me tell you that perfume was picked for a purpose. The people who design the marketing strategy for one are the same people who do it for the other.
The adage that 'we get what we pay for' is only partly true. We Brits are the definitive 'brand animal'. Two identical houses in London, 75 yards apart. One falls in SE13, one in SE3. The one in SE3 will command £25,000 more.
It's fundamentally to do with zoology, believe it or not!
Go figure!
Steve