Why Pay-Per-Action Is Overrated
Her argument is that since she only pays the advertising channel when her ads convert to sales, she therefore knows that no marketing dollars are being "wasted." Therefore, she must be achieving a higher marketing ROI.
While it may be true that her jellyfish campaign is achieving a higher ROI, it is not necessarily true. A simple example will demonstrate this:
Assume she is selling a $1,000 product and decides that she is willing to spend $200 marketing dollars to get that sale. Also, assume jellyfish just charges $150 when a sale is made. She can continuously advertise with jellyfish and know that every $150 she spends will result in a sale.
Now let's say she attempts a Pay-Per-Click program on Google, and pays $3/Click. Also assume that she has a website that converts 1 out of 8 visitors into a lead. She effectively pays $24 per lead through Google. And let's assume her sales staff converts 1 out of 5 leads into a sale. She effectively pays $120 per sale, which turns out to be lower than the $150 she pays per sale through Jellyfish. This is despite the 39 out of 40 clicks that do not convert to a sale.
While it may be fair to say that Pay-Per-Sale advertising eliminates more risk than Pay-Per-Click advertising, just like PPC advertising eliminates more risk than impression-based advertising, to make a statement about better returns on marketing dollars based solely on the model of payment ignores the basic math behind lead generation.
