Japanese people are used to that and they take it for granted, but it is quite unusual for people from outside to see heated cans sold in vending machines. I haven't seen it anywhere outside Japan. I can only speak for European countries, but I still think it is quite original. We are used to cold drinks, but not hot. It also made me think that I have never seen canned coffee outside of Japan either. So yeah, these vending machines are quite unique!