"The health-care law does not truly compel Americans to have health insurance; it simply levies a tax on those who refuse to get it, with no other means of enforcement. As a result, millions of people may decide that it's cheaper to pay that tax penalty than to buy a policy. Even with subsidies from the government, for example, it will likely be cheaper for a family of four living on $45,000 a year to pay the penalty than to get the most basic and cheapest plan offered on the exchanges. The Congressional Budget Office has estimated that 4 million people will opt to pay the tax instead of buying health insurance by 2016..."
http://theweek.com/article/index/230357/the-road-ahead-for-obamacare-a-guide
