Agencies and advertisers like simplicity. They like to pay a fixed fee for a conversion. Either doing performance based advertising on desktop/laptop, tablet or mobile inventory; it’s all about that fixed fee (stimulated by the well know last click attribution model). Isn’t the customer journey more complex than clicking on a banner and buying a product? Of course it is.
Marketers like the word ‘touchpoint’ for a reason; there are many points a consumer touches before committing to an online or offline purchase. A touchpoint can be a TV commercial, a friend with a recommendation, an Out-Of-Home ad, an ad in print or; a display banner on a mobile device or computer. It’s that first touch that implants a desire to purchase/own a product.