Good points. So the question still remains is it worth it to eliminate the income tax? I think so provided the sixteenth amendment goes also.
It could be worth it, but first I want to get to the point of an honest debate. I don't want some fairytale spin. If we are going to have incomes go up 20% and prices go 20%, we need to know. Maybe there is a way to deal with that, but the fed will have to increase money supply and not over-react the large one-time spike in inflation.
Any legislation creating the FairTax (or anything along those lines) must include a provision that it will not have effect until that repeal, or else the politicians will stick us with both taxes, as sure as the sun rises in the east.