Interesting that this is popping up. I just read about wine in cans. And when I go to a beer festival now, there are many expensive rare brews presented in cans. 3-5 years ago cans were the poor mans packaging. It's amazing how large a role marketing/blogging plays in the perception of something like packaging techniques.
Crowlers became a big deal with microbrewers, you could sample the beer at their location, and a Crowler was a lower barrier to entry then buying a glass growler, then remember to have it with you the next time.