Guys, c'mon...
It has been explained to you why the billing system works the way it does... 6 people, keeping it simple for now... managing different pricing structures would create more work in the office at a time when they don't have the manpower to do it.
Is it wrong? No, you are not forced to do it. It may not be a favorable option, but it is understandable, and the necessary one for now. I averaged maybe 10 sorties a month the last two months, and still paid for my callsign. I don't think that is "evil" or unfair. I know what the rules are and I decide to play or not.
As for the Zone being a lot cheaper, yes it is. Is it a lot better? If you think so, why waste time coming here and spending so much more for an inferior product?
You don't have to answer that, I have been to the Zone, too.