It was recently announced that Amazon plans to start opening large brick-and-mortar retail stores that are akin to department stores. They won't be quite as big. Supposedly they will be around 30,000 square feet. But this is still a meaningful commitment to physical retailing. The first stores of this type are expected to be in California and Ohio.

On the one hand, this move probably appears counterintuitive. I mean, Amazon is a machine built around e-commerce (though it does already have other physical stores). But on the other hand, you could argue that they are simply following a retailing playbook that was developed over a century ago by companies like Montgomery Ward and Sears.

Both of these companies disrupted traditional retailing in the late 19th century through mail-order catalogues. Why pay for physical space when you can just mail people catalogues? (Your margin is my opportunity, right?)

But as we know, eventually these mail-order catalogue businesses turned into brick-and-mortar stores, and they then thrived this way for many years. If you consider e-commerce to just be the 21st century equivalent of the mail-order catalogue, then perhaps this next move by Amazon was always destined to happen.