Typical American corporate attitude to the rest of the world.
We give them the internet and Raspberry Pi and all they do is miss the point.
Is it any wonder people don't like american companies ?
I would like an explanation.
Well, to be fair the UK price you're quoting includes taxes (significant VAT) whereas the U.S. price does not...
If you compare apples-to-apples then it's closer although still not the same, and (per your request) Adobe has offered an explanation of this in the past.