OK, in theory, sure. In practice, if you come into my comic book store and buy a $75 Absolute edition of Watchmen, do you really want to reveal your financial status to me so that I, as collector of the sales tax, can charge you the correct amount? Setting aside the hassle for me, having to calculate a different point of sale price dependent not upon me or upon the product, but upon the personal information of a customer who is otherwise a total stranger? It might be possible to do, but I don't think it would be better than extant practices.
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
no subject