Is this ACM membership worth it?

If your paying $500 for an O’Reilly subscription, then the $99 membership plus $75 add-on for O'Reilly would seem to make it so even if you don't use any of the other facilities:

> unlimited access to ACM's collection of thousands of online books, video courses, interactive sandboxes, practice labs, and AI-enabled tools from O'Reilly and Skillsoft Percipio