I said expensive [AND] disposable parts, not OR.

I'm sure it will be expensive, but doubt it would need to be disposable: current CGMs rely on injecting a metal sensor into subcutaneous fat. After about a week your body starts to heal around it and the sensor becomes ineffective. Do to the nature of the application process, there is no way to re-inject a sensor once used. The sensors are on the order of $50 each, so $50/week.

Expensive hardly matters to me. As long as it is less than ~$30k per 10 years, I would pay. Insulin pumps already cost $10k+, and do not provide as much value. This kind of tech is life extending for those of us who need it, so price kind of moot (up to a point). How much would you pay per year to get an extra decade of life?