If your insurance doesn’t cover pens, it is VERY unlikely they’ll cover Exubera which is far more expensive than pens.
It is very tough to dose it, as you can’t match it to the carbs in your food. The company tells you to dose it by your body weight! If that isn’t nuts, what is?
BTW, because the endocrinologists have been refusing to prescribe Exubera because of it’s flaws, the company that makes it is marketing it very heavily to less sophisticated family doctors without explaining that it is obscenely expensive and very hard to use properly.