I actually had this debate at work a few years ago. We needed a queue system and I wrote a postgres prototype in about 100 lines of code that would have worked fine for our use-case and would have likely scaled with us for years of growth.

My boss said he just wanted to install the best thing and be done with it forever. So we ended up spending 10x the time and wrote like 10x the code to integrate a third-party solution and we only ended up using the most basic features. Not to mention additional infrastructure.