It would make sense if 1) the fridge could somehow detect how much of various things you had left (milk, butter, etc.), 2) order these things for you automatica

It would make sense if 1) the fridge could somehow detect how much of various things you had left (milk, butter, etc.), 2) order these things for you automatically, and 3) there was an economical way of getting these perishable things shipped to you cheaply. It's sorta like Amazon with their buttons (I forget the exact name now), where you can press a little button in your laundry room and they'll immediately ship you some more detergent. The problems here are 1) there's no easy way to automatically detect the levels/amounts of foods in your fridge with current tech, 2) shipping a single milk or stick of butter is horrifically uneconomical, and 3) shipping cold, perishable items is even more uneconomical. I guess you could configure the computer on the fridge with your favorite items inside, and then just press buttons on the screen when something runs low (so it's not fully automatic), but that doesn't help with #2 and #3.