I was thinking more about other components on the bike. Like how often you have done valve clearances, if you've have to reshim or replace valves, compression values, transmission wear, oil consumption, any sensors that have gone bad, etc.
Basically, how healthy is a 90k mile bike that has been taken care of.
I've had this bike since 2011, and got it with 5,7k miles.
Average MPG: 40, typically riding around at 4-6k RPM max.
Daily commute: 30 miles roundtrip (freeway)
Ridden rain or shine, stored outdoors with a cover.
Engine
Valves: Yes crazy, but I have not checked them, ever.
Air filters: K&N street, cleaned every 6-months (I do not live in dusty conditions)
Spark Plugs: on 3rd set
Stator: went through quite a few of the stock ones in the first 2-3 years; swapped to the newer 2007 flywheel(?) that supposedly helps, but was still burning out the stator. Changed over to a Rick's Motorsports Electric one, on the 3rd one (just replaced at 90k). Rick's changed the windings for better longevity, and I got 25K out of the first one, where as a stock one is probably 10-15K max.
Oil change: full synthetic 4-5k miles, with filter changed every other time (oil changed sooner if the shifting starts to feel grungy). Bike has done burned very much, if any oil. I fill it to the max line at change, and it's at the max line when I change it the follow-on time.
Coolant: Changed 2-3 times (total)
Yoshimura RS-5 slip-on, with Power Commander 3.
Tire: Michelin Pilot Road 3/4/5s
Drive Chain: literally stretched to 20k-30k between changes, which tore up the swingarm protector, so that was changed too. Changed cleaned well every 5k miles; lubed every 2-3k
Fork Seals: as discussed
Rear Shock: still stock (I'm a light rider 150#)
Misc R&R
Speedo pickup swapped around 80k (stopped working)
Front brake light switch connections were corroded at last safety check, cleaned and used silicone grease to seal (100% reliable now)
RECOMMENDATION:
If you ride in traffic, and you bike gets HOT, like the cooling fan is kicking on, and your temp is at 212F, I would recommend doing the cooling fan bypass switch. I have not done it, but I do think it would help with the stator life. Ride after a ride, you cannot put your hand on the stator cover (left side), and after 30 minutes, it's still quite warm. All that heat soak into the windings is what will quickly burn out the stator. I did read about a major project where you can change out the charging system to much newer tech. I read about that a couple years ago, and given that this bike is at the end of it's life, I elected not to invest the time and money (it was probably $300-500, off the top of my head, e.g. wasn't a $50 job).