How about Daily Reward system?

If it had a system like this, there would be no need to ever buy gold, as you would get so much gold each day that it would be nonsense to even think about buying gold. Maybe there could be a way to buy a "gold booster" that lasts a few days, possibly 1-3, and makes in-game rewards worth more. After expiring, you can only buy a new one 1-3 days later. On the EU server, it would probably give about 5-10 extra gold per game reward. Would be a bit more fun than gold packets.