Automation means you actually have to run out to get more.

A backup bottle means you never are out - if you remember any time during the 2-month period it takes to use up a bottle. Or have an automated system.

Automation could mean it analyzes your average usage, and when you will run out in (amount of time it takes product to get to you + 20% for a buffer) it will order more.

Or hell, when you are at 50/25/10%, order another.

And if you are uncomfortable with it ordering it for you, it could just add it to a shopping list for you.

I've actually semi-automated this in the past by having Amazon ship me products on a regular schedule. Pricewise, though, it makes more sense to just make a quarterly trip to Costco and load up the storage closet.

Because you are not beholden to billions of dollars of infrastructure just "working".

Like our cell phones, or cars, or electrical grid? Silly, that's called 'civilization'.

I'm already paying for it, either through my free will (through various services) or threat of violence (taxes).