My friend Alice just reminded me of the ridiculously high postage costs of ordering stuff from the US, which basically ruin the advantage of the low dollar.
But fret not, there is a solution: MyUS.com. Basically you sign up for a US mailing address, to which you then get all your online purchases send at national delivery rates. You can view your purchases online, and when you feel like having them send to wherever you are, MyUS will forward them to you. Genius.