Re: Why pay fees at all?
Anyone with a clue knows that free software isn't free.
Free means paying someone's time to implement & support with no guarantee or warranty. That critical system on free software will not stand up to scrutiny. Running fedora server and get hacked, who do you call to fix it fedora or pay red hat, suddenly free is costing you and is therefore not free.
Are you going to run That critical off the shelf system that's got support when used with oracle or ms database on MySQL? who will support it fails?
Free is great when it's backed by paid support despite how much you pay the consultant to install it.
If it's important you need assurance, which is what you get from paid for licenses.