Neither of those links provide any numbers or good reasons to think that Cuba and the US can be easily compared. So while I agree that the idea is attractive and plausible, it remains merely an idea. And it is an old one too, I remember reading somewhere that in ancient China doctors were paid while you were well but you stopped paying if you fell ill so it was in the doctor's interest to prevent you falling ill. I have no idea if the story is true but it does suggest that the idea is not new.