I just looked at a 2010 K13gt about a month ago now. Bike had 11,xxx miles on it. Super clean, very pretty, bags, had a top case, no scratches, all options etc. Had not had the recalls done on it but had 6K service done. Dealer was asking right around $13K can't remember exact price now. I really, really wanted it. I figured I was going to get it for around $12K. $17K seems a bit high. I don't see much difference in 500 or 11,00 miles. That's worth maybe a grand. Unfortunately after riding the bike a bit I just didn't trust it. I've owned 60+ cars and 30+ bikes and can smell a bad one.
Beyond that they had a 2012 K16 that I barely even noticed. Didn't care, didn't want one, didn't even bother to sit on it. Then the wife said 'that one's cute, why can't we try that one, I like it'. Took the 16 for a ride and brought it home.
I didn't want a 16 because of the 'its a big beast' thoughts. And yes it is a big beast. As an only motorcycle for around the City all the time its a bit much. I have multiple bikes so I can ride something else in town.
However, I have been experimenting and riding. Here are a couple thoughts. Fully dressed yes its a beast and you might as well think of it as riding an old wing on steroids. With the side bags OFF and only the trunk installed its not bad at all whipping around town. I actually like it as a good configuration. With the side bags and top case OFF, its no more cumbersome than riding my K12 or CBX. The bike has great handling, responds fast. I have to say that I have no reservations recommending it for putting around / short trips. You might want to actually take a look at a K16.