I believe the value of 996 TT's will continue to climb. The 964 is a good example. 8 years ago, nobody wanted one. They were the red headed stepchild of the line. Now look at them! I think the 996 lines are just now making sense. The GT1 headlights finally look great (my opinion) and the subtle smooth lines of the narrow body have become more appealing. Everyone loves an underdog
