How many repetitive messages do we really take in?

It struck me the other day how many messages in supermarkets are bullishly reinforced these days.

I have felt for years that the psychology of the shopping journey was one of the finest art forms of audience understanding - luring us around the store in a pre-set way but tricking us to think it is unique to us, but I wonder if things have gone too far.

This photo is from my local Tesco store - note the sheer volume of price cutting imagery.