Sorry to break up the V1 love fest !

I actually just bought the 9500, after having the 8500 for many years. The GPS thing is great. Not only can you mark positions that you know are bogus, it knows your speed and then will adjust the sensitivity automatically. There was a stretch of road near my house where the radar would go crazy. With the GPS, it knows you are only going 25 mph and will not go off.

It also has some nice features like voice and automatic volume control (it has a mic, so it knows how loud it is in the car).