The problem is the feedback between how much insulin a body needs to produce in response to a glucose level isn't perfect yet. That's because the exact composition of the insulin gene isn't known yet. They know part of it. I like that approach better than the other two. That technology is making so much progress that I think curing diabetes is around the corner.
Genetic engineering is very inexpensive.
That technology is cheap. You're probably going to have regional centers the Mayo Clinic or University of Minnesota that will be doing it for the Upper Midwest. Much more is coming, actually. We are going to see a unique new insulin, probably in January. It will be injected only once during the night and will cover 24 hours.