Personally, I don’t think that $9000/month for an extra 6 months would be worth it for anyone—but the pharmaceutical company. Then again, maybe someone afraid of dying would think it a bargain.
In a well functioning market this will eventually become generic and cost a tenth or less of it’s current price. Who are you to decide who gets it?
No offense meant, but the major problem in American health care are third party decision makers be they in government or insurance companies.