[prostoalex]

For majority of people in that situation Medicare would apply, and look how single-payer is working for them:

"Medicare will pay premium rates for up to 100 days of services in a nursing home to rehabilitate patients. While such efforts can be beneficial, government investigations and lawsuits document a pattern of excessive or fraudulent orders for such services, often just before death."

What use is a single-payer system that stays hostage to whatever political party is in charge in Congress, subject to lobbying from corporate and other special interests, and mostly toothless to fight fraud?

Having that much paying power concentrated in a single entity controlled by politicians makes it even more of a target for corruption.