That is the downside. you can prototype with one chip and when the concept works switch. I've worked with many projects over the years where that was done. Sometimes an intern proved it works with arduino - which wat cheap enough to buy without needing supply management, but then we did the project with 'good code' on our internal controllers. Othertimes we bought a competitor andiagain first thing switched them to our controllers. (Our controllers are designed for harsh environments which means millions of dollars spent designing the case and connectors)