content: In Japan, on just about every street corner, there are vending machines which serve hot coffee in a can on one side and on the other side cold coffee in a can. That's Free Market working they way it's supposed to work. But the entire hot side is actually heated, not some kind of scary weird science experiment beverage holder as you describe. On a side note, they also have beer vending machines... right out in public. And they're never vandalized or broken into. Imagine if they did that in just about any European city today? Damn thing wouldn't last 5 minutes alone and unguarded.