Well this should help make it obvious! Cause you can see “cheapest by pound is x, the price per pound of this bulk bag is y.”

Compared to having to scroll around.

I do genuinely enjoy buying enough rice to last a year. Also bought a great cheap rice cooker at my local Chinese grocer. Idiot proof and almost certainly saves electricity.

I think I once worked out that the rice based meal I’d just eaten had cost less than a euro to make.