I agree that it's really senseless that you can't even look at the product pages if you're outside US. Adding ?gl=US to the end of the URLs works, though.
I meant the individual product pages in the Store. The "Visit the US site instead" link they provide works for the main page, but not the sub-pages for products. I don't know why I can't buy the devices and have them sent to a US address, anyway, for that matter.