Its good that your posting ideas but a few issues with this one. a) Its not to hard, Its meant to be that way, and if your willing to work hard to earn the ring of wealth, why not the secret keys?
b) I'm not sure how I could get this to work without making the server as laggy as hell
c) If i wanted to change the drop percentage I could, but ive made the server the way it is for a reason, mainly being, Its meant to keep you entertained, not just do it get bored, leave.
d) If i were to raise the drop percentage of say the blue key, that means everyone whos worked so ahrd to get it would be ripped off, and id have to come up with all these rewards so people were equal
MY RESOLUTION: LEAVE IT THE WAY IT IS
Kind Regards,
Liam