We love Bag In Box concept! It has a number of advantages:
Lighter than glass packaging, easier to transport
BIB packaging preserves the quality of the wine better than a bottle, no light or oxygen affects the wine, so it stays fresh for weeks!
It's better for the environment: corrugate requires a lot less energy to produce than glass and the outer box and bag are recyclable
Cheaper than buying 4 separate glass bottles
Party friendly
 
Classical Rhône wine from hillside vineyards. Dark garnet color and intense nose of red fruit, cherries, strawberries, and pepper. Delicate tannins balance with notes of stone fruit and mint. Pair with beef, lamb, game, or ripened cheese. Serve at 16-18°C.