This is almost certainly a Japanese product for Japanese people/companies who will give it to other Japanese people as a GIFT. Japan has a never-ending gifting protocol. People buy perfectly normal beer in a fancy box, to give it as a gift. It's a nice thing about Japan that is particularly Japanese, which is probably why many of you don't understand the purpose of this product. I bet if someone gave it to you spontaneously, you'd appreciate it!
Oh, also, "Made in Japan" is a huge deal for a lot of people in Japan.