I occasionally write items like this on Medium.com for practice — an outgrowth of my news background. If I were a columnist at a daily newspaper, the pizza vending machine would be exactly the kind of topic I’d look for: built-in audience, easy-to-write, fun-to-read. Let’s say I wanted to write a story about cast-iron cookware, for example, I’d take an approach similar to this, stylistically. — jsl