I’m used to it now, but the only rational I could find by asking around “why is the tax not part of the final displayed price” were :
- “it depends from state to state.” Taxes are also different in Spain, France, Germany and Italy … we use the same currency and we don’t feel the urge to display our taxes by removing them from the displayed prices. Even in places like Andorra, where the tax on Tabacco is close to 0.
- a less common rationale; often find in the libertarian type of interlocutors. “It’s to show what the government is taking you”
Sadly; I think it’s the second one? I’ve ask that question a lot in the last 10 years. People just shrug it as un-important and we move on with the sale.
Or maybe nobody knows?