I'm the original owner of a 2009 Scion xB. It's currently sitting at 278,000 miles.

Tires last me 70,000 miles. (3.5 sets total)
Brakes last between 50-60,000 miles (manual transmission & engine braking help)
Changed the battery once or twice
Changed the fan belt once
Rear Wheel Bearings were replaced 2 years ago.
That's it.

Original exhaust and clutch