Box water is better? If the proof is in the packaging, the packaging says the container is made up from 90% recyclable materials, and package shape let's it be boxed flat to save trips to the water plant and there's some sort of donations or something.
Here's the thing though, water packaging that looks like milk is off-putting. If you're going to buy water, you probably want it to look pretty and clear and magical. Look at Fiji water, people pay for it because it looks so "fresh" from an exotic-springy. The idea is nice, but I'm not sure people want to buy water that they can't see. I'm sticking to my Brita and my New York tap water, thank you.