Got a couple of responses - none very helpful (try clearing basket / try another browser / client).

BUT…just been back into the store and managed to ‘purchase now’ as the button isn’t greyed out – there is a note around delivery delays due to high volumes though.

we’ll see…

I’ve put in a support ticket - you never know!

Will share any response I get

Yep, I’m in the same position in the UK. No ‘Buy’ button on the basket / checkout screen, no option to be added to a wait list, no way to join a wait list prior to adding the Deck to my basket! Also if I ‘wishlist’ it I get the OG Steam deck added.

Grrr!