I wish pilots flew for free so I don't have to pay so much for something that's so critical to my career. What's wrong with you? Do you genuinely believe that stuff like open source (especially critical one) should be created and maintained for free? By who?
He said that he pays every year money on something that didn't work and the support took ages. that was his problem....
Now I assuming that if he had a opensource logbook he could quickly find out what the problem was himself without relying one someone else.
Maybe the right counter argument would be that 100$ is not sufficient to provide a SLA to handle his support request whithin a shorter timespan. It should be prices higher ;) If this app is so critical for him I assume again the OP wouldn't mind paying it.
