There are plenty of good products that people probably wouldn't pay for these days: web servers, unix-like OS's, and scripting languages; just to name a few. Once upon a time, companies made a lot of money selling Unixes, and for a period of time, there were commercial web servers.
You are crazy. Clorox still has more end-consumer market share than all store brand bleaches put together, even though it is chemically the same stuff and costs way more.
Yes, but Clorox isn't a commercial Unix, unless it was one of the less widely known ones, either...
The point is that you can do that kind of thing in that market sector. Can you in IT? Maybe, but certainly not in some areas. The economics and marketing are quite different.
