What every girl needs

Green dress - yes
Pale blue - yes
Purple - yes
Black - no.
I wonder if the black dress was on the right hand end of the window display and has been sold. If so the banner worked. But that is only one out of five sold.
May be the message is that you get what you ask for. The retailer made the black dress sale but not the others.
In life we need to be sure what we are wanting is the right thing.