Definitely mainstream pricing there!
$650 works out at £620 in the UK and Powercolor is not one of the more expensive AMD OEMs IIRC. The RX7900XT has been in the same approximately price range for a while.
That means an RX9060XT will be a $500 card if an RX9070 non-XT is a $650 card.
£600+ for an RX9070 non-XT would need it to beat an RX7900XT at the very minimum. But the issue is the RX7900XT has 25% more VRAM and more memory bandwidth too.
I am not sure what games the Nvidia and AMD pricing cartel are playing here,but it will only mean people will keep graphics cards longer and longer as the cost increases. Longer term,they are going to end up with card sales shrinking more and more.
If the $750 is accounting for 10% tarrifs then that pretty much comes to around £650 in the UK with vat. That seems ok for the xt.