Lol. wtf is this? the $6 carton of milk (even though the carton of milk over here is like 2-4 dollars) will last longer than the $4 bagged milk.
1. you would have to keep buying the $4 bagged milk everyday, cuz it will get spoiled. and
2. The carton or jug is more efficient and durable. Plus there is a nice convenient lid that you can take off and put back on so it won't get spoiled.
But seriously what's next? Drinkable cheese?