> It's handy for people who want to drink 1-2 glasses of wine a day
In college one year, I had a randomly-assigned roommate who occasionally celebrated "boxed wine night", during which he would attempt to drink an entire box over the course of the night.
This is how I learned that boxed wine is apparently also handy for people who like to drink absurd amounts of cheap wine, since each box is typically equivalent to 4 bottles.
You can probably guess how "boxed wine night" usually ended for him. Even so, his academic grades were excellent, go figure.
The smartest person I know would drink an entire bottle of vodka in an evening when he was a freshman.
He quickly stopped that behavior, though. (I think I told him he made a fool of himself and he didn't need to do that to impress people.)
I personally never had the stomach for that much alcohol. I once drank a single bottle of wine (4-5 glasses) in an evening and I could hardly handle it.
It's handy for people who want to drink 1-2 glasses of wine a day, because the wine spoils slower than in an open bottle.
I haven't bought one in awhile because I prefer beer.