Which is to say, you can indeed purchase health care. You might not get the volume discount that Blue Cross et al do, but you can buy it. And, in practice, if

Which is to say, you can indeed purchase health care. You might not get the volume discount that Blue Cross et al do, but you can buy it. And, in practice, if you tell the provider that you can only pay X, it is quite possible that they will prefer getting X to getting 0.