Is quality worth the cost?

I think so, and there's good, data-driven arguments for high internal quality. This is a topic I struggle at explaining to non-developers, and Martin Fowler does it beautifully.

Is High Quality Software Worth the Cost? - https://martinfowler.com/articles/is-quality-worth-cost.html

This article is often times the source of other great articles about the cost of bad quality software, and why high internal quality is important. By Isaac Lyman at The Overflow, Stack Overflow's blog.

Code quality: a concern for businesses, bottom lines, and empathetic programmers - https://stackoverflow.blog/2021/10/18/code-quality-a-concern-for-businesses-bottom-lines-and-empathetic-programmers/