The point is not what has been done in Georgia in the past (after all, it was a vassal of Russia for much of its recent history), or the weird and wonderful indigenous grape varieties, or the style of some of these, tradition being what it is. The point is that it's proven grape land and climate, an emerging market and production base which likely is a downright cheap place to set up a biz, and they'd probably be pleased to subsidize a good business plan in order to establish itself in the sector.
Yehoshua, Georgia is a ground floor opportunity. Chile is a mature producer at this point, with most of its land already bearing. Chile is not growing the way Argentina is. Argentina doesn't really appreciate US investment (although they love the US market), while Georgia does.