A lot of reasons below are valid. And also the technical context addressed by one of the other comments. But beyond that, as a company's size increases, the pro

A lot of reasons below are valid. And also the technical context addressed by one of the other comments. But beyond that, as a company's size increases, the proportion of value contribution from the code is increasingly augmented by the functions of marketing, sales, support and distributions. The value of code in isolation diminishes so much, the risk is usually not worth it unless it is something very unique like GPT.