Well, I very much appreciate everyone's input. And the verdict is...I am keeping the beloved FJ. My local dealer has not had any GT's so I had to travel a bit to find one. When I finally did get a chance to ride the GT I could definitely see and feel the improvements, but while there are things I like a lot on the GT, I started to realize that there is nothing that I really dislike about my FJ. The GT does things better than the FJ, but it is not because the FJ does anything wrong. The GT is just a bit more refined. In the end, I didn't think the improvements were enough to make the switch.
But...in a stunning turn of events, while shopping for the new bike I rode something that I could not turn away from, and now, I am awaiting the order on my new 2019 Ducati XDiavel. It was the most unlikely of candidates, but once I rode it I was hooked. It will definitely be the bike that stares back at me in the garage, beckoning me to ride.
I'll be hanging on to the FJ and probably not do much else to it, but it will definitely have a secure place in my garage and in my riding routine.
Thanks again to all, and I'm sure I'll be around here a bit longer keeping up with FJ/Tracer news.