Reading this reminded me of the thread a while back about bottles vs. cans. It seemed an overwhelming majority preferred bottles and some went as far as to say that cans affect the taste of the beer. Although the vessel doesn't matter to me when I'm having a beer at home or at a restaurant/bar (since I pour it into a glass), I prefer cans for when I'm camping, hiking, backpacking, or hanging out anywhere outdoors. Jim Koch provides a really good explanation of their decision to start canning and I think it's worth a read, especially if you're one who is skeptical about cans in the first pace.
http://blog.samueladams.com/sam-can/
http://blog.samueladams.com/sam-can/