I do definitely agree that in theory the K16 should be cheaper... but you're really not comparing apples to apples here. Similarly equipped, a K1600GT base is $20,900. That is a bike with the same equipment as the FJR plus a few other niceties. Comparing it to the fully loaded GT is not really fair as to add all the features you're talking about on that GT you'd have to spend several thousand dollars more on that FJR. Some things (like traction control and electronically adjustable suspension) are not available at any price. You don't HAVE to load up a GT, and in fact the first bike I rode and almost purchased on the spot was a base GT with no options. I ended up adding all the toys because... well... because I wanted to actually. That brings the difference down to around $6K.
Yes, that's a good chunk of change... but BMW likes to position itself at the top of their market segment. BMW with the M3 competes against the Mustang Shelby GT500; similarly equipped they differ in price by more like $15,000 so this positioning of the K1600GT is really no different than BMW's modus operandi in the car division. Yes the Motorrad division is run as a separate company, but there's no doubt that they will tend to follow what Corporate does.
As for heft and size... wet weight of the K1600GT is around 725lbs compared to 641lbs for the FJR. That's a difference of 84lbs. Sounds significant until you realize that suspension and good tires can offset a lot of the handling deficiencies caused by that weight and the power delta between the two bikes is huge. And size? Well, I can't refute that point except to say that size is only a problem when combined with weight. The weight in the K16 is really low down which means that moving it around in the garage is actually pretty easy. Easier than my old Concours was (though definitely not as easy as the FJR was). Height-wise, again the K1600GT's seat is actually lower than the Connie's so I actually fit better on it... and that's with the seat in the high position. Having said all that though, it is a LONG bike but that does lend itself to an extremely composed highway ride (which let's be honest is probably north of 90% of most of our riding). Still, not had a problem parking or maneuvering the K1600GT in any situation and I have yet to find myself in a situation where the K1600 felt at all discombobulated by my riding it hard.
So yeah, I do like the big Beemer. It's probably not to everyone's tastes and I'd say it's one that needs to be ridden and NEVER purchased blind. I am glad I was able to ride one before I committed my cash because it meant I was more sure of my decision. Of course, I think I'd decided in the first 5 minutes of my test ride that I liked it. For others though the FJR is definitely the right choice and I would never steer anyone away from it. As I said it was a great bike and didn't do anything wrong... but riding a motorcycle is not about getting from A to B, but rather
how one gets from A to B. In order to make motorcycles work best you must feel like you're one with the machine... I just never got that with the FJR but felt it almost immediately on the K1600GT.
And for the record, there's no shame in owning a Mustang Shelby GT500, either