A few things, nothing crazy in almost 150K miles.
Fuel pump got noisy at 60K, replaced it. probably the most expensive part I changed, I think it was $200
Compensator was noisy, I replaced a $30 spring
Clutch wore out at 108K, I consider that normal wear.
Output shaft oil seal failed, $50 part.
I broke a spark plug wire at 120K, had to change them.
Pretty much everything else was maintenance, tires, oil, light bulbs, wheel bearings, brakes, spark plugs, etc
The only thing on the bike that doesn't work is the gear indicator, was a known issue on 08s, a bad design that fails. I fixed it, it broke again, I decided I didn't need it so I disabled it electrically, it always reads 1, but this way it doesn't mess up the rev/ speed limiter like it did when acting up.