I bought my '05 brand new in July 2005 and it now has just over 40000 miles on the clock. Whilst under warranty I had some cosmetic issues and also two sets of front discs replaced because of warping. Since the warranty expired in July 2007 I have had to replace the following parts which are outside of the normal wear and tear items:-
battery in June 2008
battery in June 2011
seal behind the alternator pulley in September 2012
fuel pump controller in October 2012
Not a very long list. It is still on the original final drive and there have been no issues with the servo brakes. I have changed the brake fluid every two years (Jim Von Badens DVD was a godsend) and I change the final drive fluid every 12000 miles.
'12 R1200GS Triple Black