juice or cider?

I was at the store with one of my roommates yesterday and he was shopping for some apple juice.  As he was deciding which to get, I saw apple juice and cider, both from concentrate, both from the same brand, and wondered what exactly the difference was.  They looked pretty much the same.  We each picked up one of the bottles and started comparing.  First we checked the ingredient list; water and apple juice concentrate were listed on both.  We thought maybe it was the concentration of the mixture, so we compared the nutritional facts; the lists were exactly the same.  In fact, everything on the label was the same except for the part where it says 'juice' or 'concentrate'.  We held the containers up to the light, and the shade was exactly the same.  There was one other difference: the price of the cider was about half a dollar more than that of the juice.