Interesting thread but I am sure to spoil that.
We recently dedicated a cache day to Tree Quest finds. His caches are usually original but we did come across a few normal ammo hides, albeit in very nice locations. So I guess you might say there is balance, the more bland the area, the more unique the hide, and the more scenic of an area, the more regular the hide. I think I would generalize that the more convenient the area the more basic the hide will be, with expection of some urban micros.
I think if the cache is going to take some great effort (long hike, special tools needed, etc.) the reward should be commensurate.