I agree, but within reason. If my insurance costs £500 and the renewal comes in at £800 with a note to state that if they don't hear form me, they will automatically charge me and continue with the policy, I get pi**ed off and even more so when you phone and they drop it to £400.
But if in a similar example they keep the price the same and then drop it to £400 upon questioning it, thats not so bad. After all, they are a business out to make money. Imagine if every time you went to buy a car the price on the window was the price you had to pay, no haggling