I also own a 67 Dart. Mine is a 2dr sedan. I like the looks of 67's without the side marker lights. However I do like the round turn signals in the grille of the 68's. The worst thing about the 67 Dart's(I believe) is the windshield moulding. The idea of the "chromed" plastic strips and (missing on my car) corners is goofy.
I think their are alot more 68 and 69 Darts that have been restored so they are more visable at car shows, cruises, etc. The 67 darts are out there, as I found one in a guys yard near me that I hope is for sale, but they are not quite as popular as the 68's and 69's.