I actually like having dungeons of varying difficulty across the map. It makes things feel less like a transparent, extremely-predictable game where "far from town" for some reason must always equate to "strong monsters."

I like having a reason to revisit an area; it's quite interesting, I think, to have some motivation not to stick my character in auto-run through any zone that isn't designated for my level bracket.

I think that more emphasis on exploration and less on predictability equates to more lifelike environments, more curious and unique places and, therefore, more immersion all around. d(^_~)