I generally retire my vehicles at about 250k miles. I have about another 100k to go on my '92 Suzuki Tracker.
I have no complaints on my '96 Sidekick except that the front seals have a propensity to go out, requiring the timing belt to be replaced. Have seen the same thing on other Suzuki/Geo three and four cylinder motors. Other than that, they seem rather bulletproof given normal maintenance.