Exchange rate is not something to rely on when comparing game prices. Unless you're using your currency to buy from another country, as a large number of us have when purchasing from nuuvem. Outside of that, add it to the "worth it" question as another sign of stupidity.
The thing is though it has been pretty much bang on reliable for the past 5 years, way more in fact. Even Capcom themselves used to have an incredibly close $ to £ conversion. It's been the last 18 months where things have started to deviate. First Activsion started to sway and then so did Ubisoft and now others are starting to as well. All of these were out of step with current exchange rate and local economic factors and seems to be more about pushing what they can get away with more than anything else. Go check the prices for most of what's on Steam and you'll see that UK prices have on average shot up to be the most expensive more often than not when not too long ago for big budget titles they were mainly cheaper than US ones.
Oddly Sega still swings in our favour as do WB on their base games but charge more for DLC and Season Passes. Swings and roundabouts, I have my price that I'll buy it at but I'd love to hear Capcom's, among others, reasoning on price per region (not that it will ever be forthcoming)