Million dollar idea
First off, lets say there is 2 groups of people who play and love this game. People with more money than time, people with more time than money.
Traditionally money is made through subscriptions but also through the cartel market. People with more money and less time will buy stuff and sell it on GTN make fast credits. This model is good but it could be improved!
WEEKLY SUBSCRIPTION TRIALS sold through cartel market
These could then be sold on GTN and also given as gifts to help people see all the benefits of subscribing.
and that's it...