@nprofile1q... Sure, that's a fine choice as well. I didn't list all of the possibilities in my article.
There are some really good ones—Shadowdark, if you're looking for that old-school B/X experience with a focus on the tactical and the deadly. It's not a game I would be interested in playing necessarily, but I can absolutely understand wanting it. Plus, it's beautiful, well laid out, and comparatively inexpensive.
You can seriously gouge people on a beautiful hardback. I get it. That makes sense. You're paying for a luxury good. But gouging people for the PDF? That just hurts me in every bit of sensible long-term marketing brain that I have left.