I can only imagine what the insulin costs you. Our insulin is far cheaper, even less than your cost from Mark's Marine and I know what it was costing me when she was on 32u per day. When I look at Luna's spreadsheet, I don't see the same pattern as with Menace. I got absolutely no movement in her numbers at all for almost a year. Some dose increases caused a very tiny drop in readings for one day and then she went right back up again. She finally started to come down about a year into this journey and I recently had her down to 16u per day but then had to increase to 18u again. Luna is definitely getting some better numbers overall. With Menace, it's one step forward and 2 or 3 steps back lately. Royally frustrating.
While Menace is hungry a lot, at least she isn't raiding cupboards and eating through aluminum cans. Gees that must be hard on her teeth!