Quite the informative and helpful post. Thanks for writing this and sharing your own experiences and insights Joshua.
Regarding what I highlighted, have you considered selling the games you no longer want online? I'm sure some of them, especially the older ones, will sell for a pretty penny.
Also, I'm not entirely sure how Author Verification works, but have you considered getting verified on Medium? I see that you've published books on Amazon. Getting verified here might increase your reach and credibility on this platform if you did so.
You can read more about how to do that here: https://medium.com/verified-authors