Quests
I upgraded my castle to level 25 and next time the daily quests appeared the targets were ten times higher.
I guess it makes sense to set higher targets as a town progresses and castle size is as good a trigger point as any - but it is something of a blow.
I had been burning quest reward goodies freely but will now have to be more careful with the stock I have.
The rewards stay the same as far as I can see. I wonder if they might sensibly go up just a bit. At the lower targets they were worth spending a little time, effort and resources/speed ups on, at the higher targets perhaps not so.
P.S. Ten times is a slight exaggeration - six or seven times seems closer to the mark for a number of quest types. Does anyone know at what palace size the next hike kicks in ?