Reading Kevin's original post,

The Swiss adopted universal health care in l994, and legally defined it as a human right.

So when you ask:

Point is, where do we stop?

We could stop where we want to stop, in a sane legislative environment.  The Swiss have chosen to amend their constitution when a public need arises, and it appears to be in their benefit in this case-- they have universal healthcare for their citizens, and at half the cost of health care per citizen as in the US.   They have more doctors per citizen than we do, and their salaries are comparable to those in the U.S.  Their health care outcomes are better than ours on average.  Their system sure seems better than ours at first glance. 

Our issues with health care lie with its skyrocketing costs, insurance regulations and federal restraint on free competition, lack of tax incentive for individual policies, and tort reform. If we address those things, our health care system will remain the elite of the world!

What about the problem that almost 20% of the population has no health insurance?  You think tax incentives are going to solve that problem?  We've had people in this message forum proudly proclaim that they don't buy health insurance.  But emergency rooms can't refuse treatment to people like that when they arrive in cardiac arrest.  It's not a very workable system.  An individual mandate to purchase insurance would at least partially address this problem, which is far more significant to high health insurance costs than the items you listed.