Sarkin, nobody calculates house prices on asking prices, Nationwide and Halifax use the sale price. As far as I know sale prices are still rising, but not as quickly as they have in the past (I haven't really been following the house price index nationally).
I'm not really sure what your "value for money" question is about. The value of my property is what a buyer is prepared to pay for it. If I bought a property a year ago for £100,000 and put it back on the market with an asking price of £250,000 and then drop the price to £200,000 and make a sale then the value of the property has doubled in a year. You seem to be implying that because the asking price was lowered to achieve a sale then that means that market is dropping, which is clearly not the case at the moment.
I'm not saying that the market won't drop, just that it isn't dropping at the moment. Over-optomistic prices being reduced to a more realistic level does not necessarily indicate anything about the direction the market is moving in.