The price of these drugs is outrageously expensive, though, like $1000/mo. If they were to cost insurers $100/mo instead (like they do in some other countries),

The price of these drugs is outrageously expensive, though, like $1000/mo. If they were to cost insurers $100/mo instead (like they do in some other countries), Medicare would immediately start covering it. Also, people living longer costs Medicare more money, not less. Longevity doesn't save insurers money like other measures of health outcomes do.