I have never regretted a build decision. I have often regretted a buy decision. Software that I (or the team) built just works. And is a perfect fit for our ne

I have never regretted a build decision. I have often regretted a buy decision. Software that I (or the team) built just works. And is a perfect fit for our needs. External software usually isn’t a perfect fit. And bug fixes can take anything from months to infinity to get resolved. An example was a commercial game engine we used for a PC/Console game. It was buggy and slow. We sent the developers code fixes and speed improvements. They ignored it. We ended up ripping out their engine and replacing it with our own.