Ask HN: Which features are you looking for a small e-commerce?

As a programming language, Go is really powerful. Small, fast and with the possibility of creating a single binary to deploy in whatever machine you like, I'd like to develop a project only for taking advantages from Go and starting to get confidence with it. I was thinking about an e-commerce system with a minimal User Experience (that recalls the simplicity of Web 1.0). Which features would you look for if you were a small business?