[aspyct]

Cooking when/where energy is scarce. Very useful to save on fuel while camping, for example. Also, I suppose, next time the electric grid is down and you want to cook on battery.

[tenuousemphasis]

Another benefit is that it reduces the heat transferred to the living environment during cooking. Might be useful in a small living space like an RV or tiny house.

[RandallBrown]

It technically just prolongs the amount of time that the heat is transferred right?

That would still be useful if you're in a small space and the heat loss of the space is greater than the heat loss of the insulated pot.

[tenuousemphasis]

Yes, you're right. It slows the rate of heat transfer.

[aspyct]

lol, clearly we're not living in the same climate :D