You know that the public option will not be free don't you?
If the poor can't afford the premiums for medical insurance currently where will they get the money to pay for the public option?
With every proposal to include the Republican's, be it subsidies or tax credits, we will be helping them get coverage. Up to a certain income bracket we will be buying their coverage since many of the low income don't pay taxes.
Also, as tax payers we are paying for their coverage every time they hit an emergency room. We might as well cover their preventive care with the emergency room money and they can live healthier lives.
So that is a valid concern that needs to be figured out.
IF things go as planned, and I agree that is a big IF, the public option will be a self sustaining option with the basic operation running off premiums and free of tax dollar support. The tax dollars or cost figures you see in this area mostly deal with covering the uninsured.
I honestly believe we can collapse VA, Medicare, Medicaid and Military health care into different levels of this public option and if done right it can operate on the tax dollars currently collected from our checks. This will also give the public option a basic frame work of claim agents etc... and we can save some money there since all the current bureaucracies in those agencies will no longer be needed.