In some ways I guess you're right, as long as the corporate income taxes get eliminated, too. Then their prices would go down.
They are, along with payroll taxes (both individual and corporate) as well.
But I would still like to see all taxes collected by the states and local govts, even if it's sales tax.
Which is what is in the legislation as well:
Mash here >>> [H.R.25 ]
SPONSOR: Rep Linder, John (introduced 01/7/2003)
A bill to promote freedom, fairness, and economic opportunity by repealing the income tax and other taxes, abolishing the Internal Revenue Service, and enacting a national retail sales tax to be administered primarily by the States.
Refer: http://www.fairtax.org & http://www.salestax.org