Good players typically look at the contours in the fairway and on the green when fashioning shots, and sort of block bunkers out of their minds. I suspect that any green with interesting green surrounds and interior contours that affect approach and recovery shots would have similar interest sans bunkers.
Like Mark, we are in the big time bunker reduction mode, and even in new designs, I don't notice when playing one of my newer, less bunkered courses, and I like them mostly for the aesthetics, like most golfers. I think the ideal way to go is use as few bunkers as possible, and only/mostly where they are needed for artistic composition, while still being in play in some interesting way.