I'm 99% sure I'm the 3rd owner. The previous owner (husband and wife) were born in 1929 and 1930...and that's not a typo! They lost some paperwork from 1999 behind the glovebox. So the guy was 70 when it was registered with 25,000 miles. Gives me a warm fuzzy that he didn't tear it up.. Older people are more likely to take cars in for service properly.
Knowing that, I'm not surprised it's still good. But the other factor to consider is TIME... I've no clue how long the car was idle the last 17 years. With that mileage, that's like 3-4k a year... to get to my current 83K
So I agree, it's not time to tear into that just yet.