> the proprietary developers tend to have a certain dependency on the
> cash-flow coming from users, while free software developers are often
> doing the thing for the fun of it, and making users happy is a lower
An argument that I use in business environments: open source software might care less about happiness of its users, but it will be around much longer. Since my customers have all had the experience of important proprietary tools being abandoned within a company, or sold to some other company, or being closed down during some A&M, or being not further supported owing to some other management decision, this doesn't happen to open source products as often.
And this has been a selling point for many contracts.
It's not quite clear to me if and how that argument can be migrated to situation of private software use, but it might be a pointer towards a possible direction.