Another reason to buy bag-in-box wine is because glass bottles are less likely to be recycled than other materials: http://www.mnn.com/lifestyle/recycling/blogs/pain-glass-problem-single-stream-recycling

(and if you can spare the $$, you can also buy fancy wine in aluminum cans, which are one of the easiesty materials to recycle: https://talesofthecocktail.com/behind-bar/meet-rebel-winemakers-trying-beer-ify-wine)