So, let me get this right. I could buy a coffee for £3, but rather than do that I should buy one of your £3 coach tickets and travel to an unspecified location where I can then spend some more money to buy a coffee I could have bought some hours ago?
Isn't the point of travel to enable you to do something you couldn't do where you were? Isn't the point of this example that marketers should always ensure that they and their media contractors know what it is that they're selling?