

It might be cheaper in some settings.
For certain food styles, I buy bulk spices sometimes because I don’t like to pay for an entire jar I won’t use, knowing that most of it will go stale by the time I’m through the jar. Being able to buy tiny quantities is sometimes way cheaper.
I’m also mismatched in my conditioner and shampoo remaining where I can buy the matching set and let the difference persist, or I can try to buy a single catch-up bottle of whatever I have excess of, to hope that they even out by the time I get to the bottom of a bottle.
Basically, I can imagine where it might be preferable (for both cost and convenience) to buy an arbitrary amount of something rather than buy a fixed factory container of that thing. I know I already do it for certain things.



I read the article’s main point as being that waste heat is all around us, and in places that get cold (like the Great Lakes region), that heat can be moved to where it is useful.
I’m thinking of the brain meme where each level represents something better:
The main point in the article is that if we’re using electricity to cool a place while also using electricity to heat a place, can we just use less electricity to move the heat from the place where it’s not wanted to the place where it is wanted?
So seen in that light, it’s not so much about how much thermal efficiency a power plant achieves, but rather a question about whether there is something better that can be done with that heat that doesn’t become electricity.