In what way is putting a jug away easier than a bag? The only difference is when you finish the gallon (or half as bags usually come in) and have to get rid of it. Except the bags are way easier there!
There is one downside to bags though: Clumsy parents. When I was a child, my mom was slamming the bag on the counter (in the container) in order to get it down better. She didn't notice my finger there. It hurt.