I spend hours of time and effort to earn myself 32 Gold Keys. I redeem them at the best possible time, when there is supposedly the chance of getting an Epic.

Disappointment after disappointment after disappointment.

Nothing whatsoever of any value to me. No reward whatsoever for my time and effort.

I can fully understand why someone would feel like quitting. It is basic psychology.

Gree must somehow ensure proper reward. The current system is not working.