Ha! I'll take a sales tax over an income tax any day of the week and twice on Sundays. Honestly, it's a no-brainer. Fortunately, we have the country's best example of that difference between Portland, Oregon and Vancouver, Washington.* Oregon has no sales tax, but an income tax. Washington has no income tax, but a sales tax. Both the income tax in Oregon and the sales tax in Washington are around 9%, but here's the kicker: income tax in Oregon is charged against all your income. Compare that to sales tax in Washington which is only charged when you buy something "discretionary" such as a car, television, clothes, or similar, but not against "necessities" like mortgage, rent, food, utilities, etc. I'd be hard pressed to spend more than 40% of my total income on discretionary purchaes that get sales taxed, but let's say I'm that kind of guy. It's a no-brainer that it's better to get taxed on only 40% of your total income, not 100%.
*And that huge tax advantage is BEFORE all the people in Vancouver shop sales-tax-free in Portland!