pageme, I have the midnight blue 2005 GTO. I got it back in October. I think it is an awesome color and always looks good when kept clean. I live north of Atlanta. The dealership I bought mine from had 3 of them on the lot and told me they simply could not sell them. I have never seen a GTO, period (any color) on the road in my area. I have no clue why these bad boy's don't sell better than they do.
I get comments and looks everytime I drive. I used to have a 1996 Mustang that was almost the same color (slightly lighter) and from about '96 to '00 used to get a lot of comments (until everyone and their brother had one). Going around a corner the other day I saw a young blonde girl pointing at my car saying "look, GTO, GTO!" (yes, i could clearly read her lips). Quite fun.