I was pondering what the key psychological difference between "product" and "infrastructure" is – why are people willing to pay for one and not for the other? I'm not sure, but I think that for products polish is paramount, whereas for infrastructure, maintainability is paramount. Proprietary software is a nightmare for installation, deployability and maintenance, whereas open source is great. This is why open source has won the hearts and minds of people who build and deploy websites and other computing systems everywhere while companies producing polished products still rule the desktop.