A couple more notable storefronts, one from Colonia , one from Buenos Aires. The second image reminds me a place where a wild-eyed mad genius spend his days rearranging old televisions into a machine that would allow him to speak to extraterrestrials. Sort of a Christopher Walken x Carl Sagan type character with a bit of elderly Thomas Edison mixed in. I doubt that he ever actually sells anything.
Speaking of great storefronts, check out this New York Times slideshow of great Brooklyn finds.
And maybe an even better slideshow here, from New York Magazine. Enjoy.