I don't see that as worse than income tax. Let's face it, all taxes suck. But, most states already collect a sales tax. Harder (but still possible) to do social engineering with a sales tax. It's still progressive to satisfy moderates, but essentially a flat tax. You decide if you can afford to pay the tax or not. Sales tax would be a big win for privacy rights. That is huge IMO. Of course, I'm only in favor as a replacement for income tax, not in addition. Need to repeal the income tax amendement.