The C# world also has quite a few paid libraries, especially for UI stuff.

Quite a few years ago I worked at a company using Delphi, and judging by their homepage they are still using it. A company making industrial machinery, with a tiny internal software department for the software for provisioning and maintaining the machines, as well as the control room software. Usability and development velocity is more important than looking hip, and easy access to hardware interfaces is paramount. And compared to developer salaries those license costs really aren't that bad

On Microsoft, Apple, and game consoles, it is still pretty common to pay for development tools.

Also pretty common in enterprise tooling, which is the market of tools like Delphi.

The alternative is everyone getting surprised that their favourite free software development tools (only free thanks to VC money), eventually goes away.

There is still a lot of legacy software out there. I worked on something for a little bit (probably around 10 years ago).

Yeah, I'm surprised they haven't just made a hobbyist tier. Especially when FreePascal allows you to make UIs with Lazarus for free.

It's cheaper to pay that than rewrite in a better language.

There are companies using Delphi-based products for long years (for a good reason, this is still great technology) so they prefer to pay.