There's 1 manufacturer and likely 1 distributor for the UK. There should be no price difference between any of the retailers, they're all getting it for the same price from the same place so if 1 can offer MSRP they all have the ability to quite easily. OCUK making the choice to scalp.
That is why I asked what is the RRP as I assumed the price went up due to exchange rate or something as usually when an e tailer displays and item cheaper that is out of stock when it comes back into stock usually the price goes skyward. If the price is £749.99 then I will wait as I am not going to pay a premium to buy this processor at an inflated price just because the retailer decides to do a bit of scalping themselves so I take my money elsewhere.