I go to Virginia to buy cigarettes, where a carton costs $24 less than in DC. I guess it's the same idea.
I've looked at makeup in Israel, since they do have some Euro stuff not available here. I was aghast at the prices -- $25 for Maybelline mascara? L'Oreal is worse. Oddly, the expensive stuff, like Clarion and Lancome, less of a price differential. But I still wouldn't buy makeup there unless I was desperate.
Huh. So the US is low-priced at something. Good to know.