As a open source house, we have sat in meetings with propreitary software vendors and have dealt with proprietary vendors who described open source as “insecure”, “unsupported” “freeware”. I doubt if they are ignorant but if they accepted open source as genuine they need to justify their pricing, I suppose.
If anyone believes what the proprietary vendors say all they need to know is that all of Google runs on open source software and all the ATMs in the banks run on Linux (it is one of the open source operating systems).
Many government agencies and educational institutions have been using open source apps on Linux for a while now (there is no license fee). Now the mainstream companies started using them as well. Generally, we come across a windows environment with a few Linux servers. To support Linux, we need people with different skillset. Perhaps these people can help with your Linux servers and apps.
