I just clicked over 50k this weekend on my '08. Did a valve inspection at 36k....no other issues. (I had a few minor issues when new). It's been superlative. Had it to over 160mph, avg'd 45mpg...best tank was 320 miles (kept it at 45 mph). It's been a fantastic bike.
Just today, I ran my 100W headlights, electric vest, heated handgrips on high...and the voltage didn't change.
Of my 8 prior moto's...this is my favorite and that is saying alot. (previous bikes: Hawk GT (drag and roadraced), C10 x2, Bandit 1200s (drag-raced).
Props to big K...this is a great motorcycle...but you already know that.