The $ to £ ratio is often not to our advantage when you look at retail prices there to here, in computing as well you would see the same number value but different currency
There are many factors, add on different taxes and post then it either becomes the same price here or much more expensive to import. If something realy is unique between the us and uk then it's more worthwhile to import, if you're out in the us then it's more viable - as long as you make sure you won't be hit coming through customs
The us market is bigger, which has two factors - retailers in the us can make their money in greater numbers of sales, but there is also more competition undercutting each other
In the uk the market is smaller, there are also people who will undercut but it's better for paintball if you put your money where it will help, it's worth a couple of extra £ to buy from a good supplier who will support you
But there are also economy differences across all of the world, the cost of living and the average wage varies wildly
Compare fuel between the uk and us, they have been horrified in recent years when their prices soared to less than half the price we pay
However - get rat arsed at the weekend and sit in casually for free, go ill in the us and take out a loan