Amazon is better than brick and mortar because Amazon fails to deliver after a week, but a brick and mortar store fulfilled in 15 minutes?
Also, for more common items such as shampoo or litter, grocery stores have literally 30 different types of them, which can make it hard to choose. By having ratings, reviews, information and q&a right there, it makes choosing the right product much easier.
Uhh, what about traveling to and from the store? Or have you invented teleportation?
Sometimes I shop at the local BestBuy to delay that inevitable day when Amazon is the only thing available.