I had the tires rotated on the wife's 2001 Camry (149K miles) this morning. The rear tire on the driver side has noticeable wear on the inner tread. Not to the point of being slick or belts showing, but you could easily see the difference. The other 3 tires all had normal wear across the treads. These are Michelins with about 50K miles on them; all replaced at the same time.
The only suspension work that has been done is both ball joints were replaced last year. I had it aligned then.