Vending machines great

I was walking around looking for a cafe in hot yesterday, and couldn't find it then tired. It was residencial area, no convenience store, but a vending machine saved sweaty me. Someone say there are a lot of vending machines in Japan and they spend and waste huge electronic power. But I think human and location costs are much higher than energy costs, and stores might consume more energy than vending machines. So I want to say that vending machines are better.