It's nonsense even with multiple products. At scale, yes, inventory costs make a huge difference. Practically, for most Americans anyway, there is storage room in your place for bulk products.

We have what I like to call a "general store" in our basement that takes up two shelves full of several bulk products. (perhaps 10-15 different products, some small, some not) We're talking about a space that might be 2.5 ft on a side, 1 ft deep. Hardly a ton of space that will require additional capital "tied up in owning this before you need it."

In Tokyo? Sure. In the US? Not so much.