However, been having similar thoughts lately with GitHub. I see people who appear to be supporting an entire subtopic of the Linux, Android, or iOS ecosystem, and there's ... $50 / month?
It was really weird personally, cause I think somewhere I thought those people got paid. And then instead its "wait, you're rewriting all of Google's examples for them? So they actually work?"
And unfortunately, I find myself guilty of this, because they're such unusable junk. For anybody who's ever had to implement In-App Billing on the Play Store from scratch with an example that doesn't work, we can totally be friends.