I'm saying have items for display to allow for browsing. You don't need shelf space for 24 boxes of cereal - you keep them upstairs. The aisles can be narrowe

I'm saying have items for display to allow for browsing. You don't need shelf space for 24 boxes of cereal - you keep them upstairs. The aisles can be narrower(no carts, shallower shelves) and you still have the experience of browsing and getting people to make impulse decisions. It's like a hybrid between browsing Amazon and being in a real store.