And now that I think of it, what I was building was a data visualization framework that users could create "plugins" for to handle many disparate types of data.

And now that I think of it, what I was building was a data visualization framework that users could create "plugins" for to handle many disparate types of data. So yeah, frameworks are a great example of cases where inheritance shines, but is rather niche and not many people work on them day to day.