Not sure about the UK store, I know the base model hasn't changed - the other models may have a similar reduction but I don't recall the price from yesterday.
I think we all were. The long downtime did give the impression that something meaningful was about to be dropped.
But to be fair it was kind of wishful thinking we'd get an update considering all signs are pointing towards an iMac refresh in the Fall (or Spring in my neck of the woods).
It's only a couple of so months but the wait is too long to endure. 🙁