Well with that question you neatly define the bubble that you inhabit.
https://db-engines.com/en/ranking ranks Oracle at number 1 and MS Sql Server at number 3, their method being a broad range of statistics based on job offers and web search statistics.
https://survey.stackoverflow.co/2024/technology#most-popular...
While in a way it's just a corollary on the expensive bit, the license compliance of the same becomes such a monumental hassle as well, and is just an enormous time waste for everyone involved. For everything you want to do there's a probing Microsoft or Oracle salesperson trying to shake you down a little harder.
Go with Postgres et al and you can be geographically distributing, horizontally and vertically scaling in a million ways, making whatever warm of cold standby or recovery system you want, and so on. Even when the pricing of the enterprise offerings were tolerable, the system around constantly extracting a pound of flesh is so overbearing it induces opposition.