My current stash of Bluette consists of 18 16oz. bottles (courtesy of our dear Launderess), and 13 32oz. bottles. With the amount that I currently have on hand, I should have enough to last me roughly 2-3 years, maybe more. We have a 32oz. bottle in current use. We use it consistently each washday. Before La France & Blu White disappeared from store shelves, we used those 2 products exclusively because they were less messy than liquid bluing. We've tried Mrs. Stewart's, and found it to be too concentrated for our liking. It acts more like a dye, and is less forgiving if accidentally overdosed.
And so what if I'm a "War Hoarder", I like to have a nice supply on hand for a "rainy day". (Just funnin' with ya Launderess)