Now this is moving into differences between Free and open source software.

You can have open source software which has some form of support and specialized feature development for a fee. Many many many do this through companies today. They do it as a company rather than an individual due to the way you need to work to get paid by public companies.

One issue I keep seeing is setups that don't work for the constraints public companies have on them. People want their money but aren't willing to work within their constraints.