i agree with "neko"
the treasure, (madels etc) are really getting more hard and hard by the passing of time and increasing of peoples..
i myself hit alomost 30-35 np'c per day for food (lvl5's and lvl10's), but found not any single medal till now.

and when i was in building process and needed Michelangelo scripts, they were not available to me though that time i was farming around 10-15 per day
but after taking couple of cities from others members which no need of these scripts.. evony gave me these scripts and atm i am having around 20..
same like for other things