Since half of all Americans take home is less than $33K/year, it's safe to say that all their money is going to purchase something and a sales tax is regressive.
Getting high-end luxury items taxed is another matter. Here, in California, the budget was held up under the Governator all because luxury yachts and jets were to be taxed like all other purchases. The rich wanted an exclusion that permitted them to buy these high-end toys, park them outside of state lines for a few months, and exclude them from taxation. That was the only thing that held up the budget for a couple of months and guess what, they got their way. I don't remember whether it came to no tax at all or some profanely reduced tax that had nothing to do with the actual value of the toy.
All the best,
Nonoise
Getting high-end luxury items taxed is another matter. Here, in California, the budget was held up under the Governator all because luxury yachts and jets were to be taxed like all other purchases. The rich wanted an exclusion that permitted them to buy these high-end toys, park them outside of state lines for a few months, and exclude them from taxation. That was the only thing that held up the budget for a couple of months and guess what, they got their way. I don't remember whether it came to no tax at all or some profanely reduced tax that had nothing to do with the actual value of the toy.
All the best,
Nonoise