Pricing is also difficult to decide on. If the majority of users won't pay, it will be higher than if we have more licensees.
If every user paid $10, we would probably be fine. I suspect not even 5% will be willing to pay, though.
$10-15/month per instance is realistic in my opinion. When you put in the balance the time lost to
diagnose bandwidth issues, customer complaints and when you know you only have to log into your Observium instance to have all useful data from your devices right at your fingertips, such fair prices matter less...
homelabs/test instances are a different problem, you should not prevent new users to evaluate all observium features.
Maybe support tickets for paying customers would be helpful, it's easier to anwser silly questions already explained
in the FAQ when the other side pays to be silly :-)