Eight years and 25,000 added miles on a used bike I've done routine maintenance. one tune up, the usual fluids, two sets of tires, brake pads. Changed brake lines, HID kit and repair ground wire, one battery and a few light bulbs.
Every year the smile gets bigger and the desire to ride more increases. Will never get rid of this bike but I will add another ride.
Best bang for your buck.
Find one that's had the clutch and final drive changed.
Age 60 and not a mechanic but can get it done with this forums help.
I concur with all said except waiting to find one with the final drive and clutch replaced. There is way to know the skill level of the person who made those repairs. I say, if you find a nice bike, buy it, since you can't predict for sure that you will ever have a failure in these parts...
With this forum's help, a couple of manuals, and youtube, you can repair anything you have the time and tools for.
I had a final drive main bearing and rear seal fail on my R1100RT (Same type final drive as the K1200LT), and I repaired it myself with just less than $200 in parts, and some new tools I will likely use again. In the mean time, the tools are paid for, and the education about my bike that I received in performing this repair I couldn't put a price on. I am confident I could repair any part of this bike now.
The only thing dealerships are good for is new bikes, original parts, and warranty work. After that, they will never see my money.
BTW, I am 68... so I have a few years on you...