[lewislynn]

Then you ask me to show a concrete example of something that doesn't exist yet,

State sales taxes exist. I asked/challenged you to show me an example of the total (gross) cost of a product in a state with a sales tax, that excludes state sales taxes...

Nothing was said about your non-existant sales tax in my challenge, though it's interesting how on the one hand you act as if your sales tax is concrete, then when confronted with logic you declare it's non-existant and can't be proven.

HELLO, ANYBODY HOME???!!!

[kevkrom]

then when confronted with logic

From you? Don't make me laugh.

Besides, I provided you with an example already.