My ZX10 is on 34k now, done that in 3 years.
I think the engine will prolly last another 34k, but the rest of the bike just ends up getting to worn out... every month you'll be replacing something.
Suspension both ends is shot, discs are thin, bodywork starts looked tired, alloy is pitted
In the end it's just not worth keeping.....
Saying that, thats a sportsbike, bikes with lazy engines dont get ridden so hard, so your big beemers last and last
Keeping a bike for 100k miles is like saying, yes, I've had this axe for 20 years, had 10 new handles and 10 new blades
edit: to ops question, 3 years and it'll be a shed most likely