Largely agree but I want to challenge this bit at the end. > probably be much cheaper than building and maintaining an air-gapped licence solution I think thi

Largely agree but I want to challenge this bit at the end. > probably be much cheaper than building and maintaining an air-gapped licence solution I think this is an unwise attitude to take. There's something to be said for a simple picket fence. Even though someone could easily hop it if they wanted to, they lose plausible deniability and in most cases that's all that really matters at the end of the day.