Personally, I find the concept of traps to be a bit silly at times, and, for that matter, dungeons (which may tie in slightly to this post).
In any area where people frequent, the idea of traps being there has always struck me as a bit dumb. If people go there more than once a month, a trap is just too inconvenient, and dangerous, to have lying around. Anything that sees daily use, whether it's a chest which is constantly opened and closed, or the hallway to the guards barracks, or whatever, should not have traps around it, at least those of a more normal nature. If it's magical, and can, for example, ignore certain types of people, or use, sure, great. But putting a shooting needle trap in the entryway to the temple which sees constant use is just dumb. Eventually, it is going to kill somebody, or turning it off for the service will be forgotten, or in some way screwed up. In every which way, it's inappropriate to have there.
Unless it's a place people are not meant to go, traps are just silly, and I don't particularly like them. If, say, it's the tomb of a pharoah, or a temple which only sees use for its yearly sacrifice, sure. Traps out the yin-yang. But any place that sees regular foot traffic shouldn't be booby-trapped. You can find traps in the real world, but most of the time, they're in places people aren't supposed to go, in any fashion. A place populated with, say, monsters, or people however? That's just goofy. Even in movies, like, say, Indiana Jones, all those traps are in places left abandoned, or bereft of life, nearly about. You don't put a moving spike wall trap in front of some evil warlords doorway; he might need to go to the bathroom in a hurry and forget about, or come in one day, tired and beat, and do the same, and, oh. He just got gored on a spiked wall. Would you rig your doorhandle with enough electricity to kill somebody? No, you might forget about it, or have a friend or relative do the same.
Now, non-lethal traps...sure. Fine. Or traps in places that aren't regularly gone to by any means.
But, otherwise, I agree: an abundance of traps isn't particularly appropriate most of the time.