Yes subsidies drive down costs *for the people getting the subsidies*. You...are aware of what a subsidy is, correct?
Also, apparently you're largely unfamiliar with the concept of preventative care and what happens to people who wait until they're on death's door to go to the hospital because they don't have insurance. Never fear, I've got you covered: http://lmgtfy.com/?q=Impact+of+preve...ealth+outcomes
But, by all means, let's keep pretending like having insurance doesn't have anything to do with your likelihood of dying from illness. I mean, really, why even bother with insurance? It's not like it's related to medical care of anything.