On my 2 main go to juices I try to order a months supply at a time and get only the larger bottles-the first one is 120ml for 63.00 and 3.00 shipping. My second go to is 40.00 for 130ml jug free shipping. I typically only try new juices that are available in small sizes. There have been two occasions where I ordered a 30ml new juice but only because several friends who know what type of flavors I like recomended them. All that being said I try to stay .50 or less per ml. But, if I find a juice I really love I have no problem paying a premium price.
