until you get down to cost price (of complete manufacture) plus some profit, taxes, shipping and some profit for a retailer
then exchange rates are irrelevant to some extent I would have thought
basically you are paying what manufacturers and retailers think people are willing to pay - keeping buying and they'll only go one way - up
look at TVs - have the prices of those gone up post Brexit ? not really - why - because the market probably wouldn't stomach it
are retailers and manufacturers making tighter margins now - probably
I think Nvidia and the retailers are doing very very well from us ......
me personally - I'm not playing the game - my 290 OC'd is doing fine even at 1440p