That's a normal JD star_rider, tonytheboss just wanted to share his gorgeous JD; thanks for sharing Tony!
However, if you like normal JD's, a pacific blue dempsey may not be the right choice for you. I say that it may not be the best choice because these fish might as well be seperate species due to the vast difference between the two.
Pacific blues are peaceful (they will eat smaller fish, but that's true for almost every fish out there), reports claim they stay smaller (I'll see where mine max's out), and they're fragile when young, which is the most common size to find them at for sale due to price. $20 for 1 inchers here in socal.
It's said that you'll have great success with these fish if you get them past 3-4"
Oh, and I wouldn't consider it a "rare" fish, but they do seem to be semi-seasonal.