Huge difference in Tusk reissue prices between the UK and USA

Anyone noticed the massive price differences that Amazon are listing the recent Tusk deluxe edition and the soon to be released Live In Concert vinyl set that is culled from the same deluxe release of Tusk.

Today according to the Amazon UK website, you can pick up the Tusk deluxe edition for £41.84 that translate to $52.26 (at today’s exchange rates), now checking the Amazon.com site, the exact same release is listed as $93.19 (£66.94)

And, when we repeat this process on the In Concert vinyl set that is set to be released on Mar 4th, the price on Amazon in the UK is £23.99 ($33.40) and on Amazon.com the price is $54.14 (£38.89)

What gives Amazon, why are the prices so different between regions for the same item?

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