My buddy David in Fort Morgan had bought an R1150R because he'd always wanted a BMW. It had 23,000 miles when he bought it. Two weeks after the 12-month warranty the BMW stealer had given him on the used bike expired, the final drive failed. David had put a grand total of 4,000 miles on the bike in that year. The repair was quoted at $1900-$2200. David ended up buying a used 70,000 mile final drive on EBay and swapped it out himself for about $200. Two months after he got back on the road, he had a fairly major electrical gremlin that cost him about $600 to fix.
Of course, I just spent a few bucks on my NT due to electrical gremlins, but I am afraid most of those were self-induced. And my bike has 95K on it.