The bags are also significantly cheaper. It's a good 10-20% price difference with a carton and that's why they're more popular in the former Soviet Union. Or at

The bags are also significantly cheaper. It's a good 10-20% price difference with a carton and that's why they're more popular in the former Soviet Union. Or at least that's why my parents only every bought the plastic bagged milk over cartons. My only issue with them is that it's sometimes hard to tell that one of them is broken in the store. Putting it into a backpack can be a disaster.