TIL it’s not the same (or merely varying by sales tax) across the US. I thought they always had the same prices in one country. That’s why they feel cheap at th

TIL it’s not the same (or merely varying by sales tax) across the US. I thought they always had the same prices in one country. That’s why they feel cheap at the airport or in the center of the capital but relatively more expensive in rural areas. Not so in the US then?