Actually, iPhone pricing from US telcos used to only show the discounted price, with the carrier subsidy. You paid sales tax on the full price, but that number was in the fine print.
These days you can buy it either way, so it's more obvious.
Back in those days I didn’t think you could buy them unlocked, which I guess makes it a more “fair” private than if you were to do it today.
But yeah it was weird in other countries when you would see “Thing X costs $Y” and everyone would do the $Y * exchange rate and say “why is it so much cheaper there”. Then you come to America and discover that the advertised price excludes compulsory fees and taxes. All American companies do this, and I would argue it is unethical, and should be illegal, but I don’t have the billions of dollars needed to buy a law.
Did Toyota include TCO in their hybrid car pricing given that it also reduces gas consumption? No.
Did Rolex include TCO in their watch pricing given that the resale value doesn't significantly depreciate ? No.
Nobody does this because it's intentionally deceptive.