That's the beauty part of it though that it doesn't cost to much to set up if i remember correctly from what i read about the one i was considering. But if you have the US PO box you would be able to shop online at Sally's, Ulta and Sephora (no Sephora where i live) which for me is very tempting plus you would be able to take advantage of all the great sales that Zoya does. Currently it doesn't make sence for me as i don't buy much monthly but if i was it would make sence i could have saved myself a fortune in December on shipping as i could have consolidated my orders into one package.
If that doesn't help the only other suggestion i have is evilBay. if it's just that one polish you want...