soda bottles vs cans Which do you prefer? In my college, bottles are 20 oz. and cost $1.25, cans are 12 oz. and cost $0.65. Obviously cans are the better deal because you get 4 extra ounces for 5 more cents, but bottles are more convenient; you can close the lid whenever, but not cans. For this problem, I just use an empty water bottle and put the contents of a can in the bottle. It's the same thing isn't it?