It's pretty obvious retailers are artificially inflating prices but why do they think the public will pay these silly prices because by the looks of stock levels there obviously not!
There are plenty of people who are prepared to pay high prices.
A few posts above, I was shot down for daring to suggest to people that they shouldn't pay more than £40/TB.
If you look throughout the thread, there are people in a panic who strongly believe that HD prices will be sky high for the next year or so. Some even believe that ALL electronics should/will increase in price, due to the flooding.
With these attitudes, there will always be some who are willing to pay sky high prices (and there is nothing wrong with this...it's their own money and they choose what to do with it).
Also, consider that businesses have no choice, but to pay the current going rate for HDs. Personal users can wait or "make do", but businesses, cannot wait. This will also have an upward pressure on pricing.
Eventually, 1 major retailer will start to reduce its prices and when this happens, like a house of cards, prices will tumble, as other large retailers will compete on price. This WILL drive down prices.
I've said from the beginning of the flooding, that prices should be reasonable (again), in late March/early April. I see absolutely no reason to change my prediction.