When buying commodity items like most produce but in particular packaged goods, there's still an unsolved problem of "how much should I be paying for this?" and

When buying commodity items like most produce but in particular packaged goods, there's still an unsolved problem of "how much should I be paying for this?" and oftentimes I see even unit prices which are straight up miscalculated. The problem seems compounded when shopping for this stuff online, when each individual item is so cheap, it takes too many clicks to realize how badly you are being ripped off. I find even when grocery shopping online through a store's own site the prices are inflated over in-store. It compounds the anxiety over someone else picking low quality/old stock to the point where I won't grocery shop online as much as would really like to optimize the process. I also find the menu system and scrolling lists of items an incredibly frustrating way to pick out the right gallon of milk. I think the underlying fact is that it's extremely expensive for Instacart to provide their service. I think an automated / lights out grocery store where you order through an app and drive by on the way home to pickup the food would be an order of magnitude more efficient. But you have to build the warehouse (like Amazon does) to allow robots to fill the order. If you're paying for the overhead of food to be stocked on shelves nicely enough for picky customers to look at it, and then only after that point are you filling an online order, that's hugely wasteful.