To folks that are complaining of being manipulated, I always felt that if you can be coerced into impulse-buying something voluntarily, and then regretting the purchase, there is probably not anyone to blame but yourself. Putting aside the existence of ads for a minute (I hate ads too), why do you feel that voluntarily purchasing something based on an ad is “manipulation”? If you resent such purchase afterwards, seems to imply you made a bad decision (rather than anyone manipulated you).
EDIT: care to elaborate the downvotes?