[dith3r]

Those graphs looks like confirmation bias. First of all pay as you go model is not a simple equation. Most of the time you will cross multiple boundaries and cost will raise in exponentially way (multiple stories how 30$ changed to 3k$). Secondly there is another bias when CTO has totally different point of view here are the pain points are. Thirdly, business guy loves to buy product of the shell to optimize development time where most of software development methodologies present this period as 20% cost of whole project (most of cost is located in maintenance (bugfix, alternations, new features). So after quick release this off shell product most of the times it will limit further grow by some limitation/cost of usage or missing feature.