4 tires at 50000 miles - Michelin MXV.
Headlight at 55000.
Oxygen sensor at 64000 miles.
Top engine mounting at 71000 miles.
Stop light at 75000.
Battery at 79000.
Belts at 90000.
Hub bearing at 92000.
Front brake pad every 5000 miles (toyota), 12000 miles (wagner)
Rear shoes every 50000 miles (toyota)
That's it!
This is a taxicab (NYC), 2 drivers (day and night), stop and go traffic, 20 hours a day, 6 days a week, averaging 250 miles daily on NYC rough pavement.
Oil change every 3000 miles and trans every 10000 miles, runs on 93 gas (many taxis have catalytic converter problem with 87). The Sienna gets 17 mpg city night driving, 26 mpg highway. Now it has Michelin Radial X with 53000 miles, still 30% remaining, better than MXV.
It's a great minivan, smooth ride, reliable. With a 5 speed automatic and side curtain airbag, it's a good choice for your family.
So far the worst think are the tires...
Changed them to the Yokohama avid trz...
Later.