Before you have that need it seems like premature optimization. If I had a blog that was getting a handful of views/day, I probably wouldn't bother with CDN/scalability until it became an issue. Or use something like Medium (which I do).

Yeah, I've always thought blogs that didn't render to static pages were just sorta silly - for just a few hits a day, it's very simple, and if you get a flood of traffic, even a small vps could keep up.