And the argument about socialised services being more efficient definitely needs a citation.
The reason they can go to the ER is because the ER has to treat you if your case is life-threatening. They then proceed to not pay the resulting bill, get taken to collections, and file for bankruptcy, which has the effect of giving them free medical treatment.
Only it wasn't free preventative care, or a free doctor's visit. It was a free visit to the ER and free inpatient treatment. Guess which is more expensive, a doctor's visit or a visit to the ER?
Given that you, the person with money, end up footing the bill either way, would you prefer the less expensive or the more expensive option?
When you go to the ER without insurance, you get patched up and kicked out ASAP. This creates other complications... People can't work, they seek out social services, etc. So you have a situation where a chronic condition that you could manage for $4,000 a year costs exponentially more when you price in food stamps, disability payments, temporary assistance payments and other programs.
If your main concern is cost, empirically socialised systems cost less and generate better results.
http://media.economist.com/images/20090627/CBB677.gif
Unfortunately it's impossible to make a proper comparison since essentially all developed nations except for the USA have adopted some sort of socialized medicine or (i.e. Switzerland) an extremely regulated private system. So USA has essentially been alone in its experiment towards private healthcare.
Given that the one system which is much more privatized than the rest has had such poor efficency outcomes I would say that the burden of proof is on anyone who would claim that privatizing even more wouldn't just make the problem worse.
http://en.wikipedia.org/wiki/List_of_countries_by_total_heal...