If you are looking for a new carboy it's going to come from italy. The mexico plant closed about 4 years ago. The italian ones cost more because there's more shipping costs involved. You could get either before but the majority came from mexico just because of the added shipping cost. I don't imagine any difference besides a different location molded on the bottom. Anyone with one of each want to start stress testing?
............Alright Brain, you don't like me, and I don't like you. But lets just do this, and I can get back to killing you with beer......~Homer